Legendary Creature - Artificer
Burgess, Machinist-Evincar enters the battlefield with two jolt counters on it.
Remove a jolt counter from Burgess: You may tap or untap another target artifact or creature. UB, T, Pay X life: Return target artifact creature card with converted mana cost X or less from your graveyard to the battlefield, then proliferate.
Next: A land-themed commander that has blue but not green in its color identity.
Stonebrow, Mightiest of Otaria4RG
Legendary Creature - Centaur Warrior
This spell can't be countered.
Spells with "trample" in their text you cast cost 4 less to cast.
At the beginning of your upkeep, put a +1/+1 counter on Stonebrow for each permanent with trample you control.
In the future please don't make requests for four or six different cards. Making a list that the next person can choose from is fine, and so is requesting a pair of partner commanders, but nothing more than that, please.
Balidev, Consul of Regulation1WU
Legendary Creature - Human Advisor T, Exile a nontoken artifact you control: Exile target spell or nonland permanent with converted mana cost equal to the exiled artifact's converted mana cost.
When Balidev, Consul of Regulation leaves the battlefield, return each card exiled with it to its owner's hand.
Next: A Kaladeshi commander not having to do with artifacts.
The Praetors who became subservient to Elesh Norn in the event of a complete, all-encompassing Machine Orthodoxy takeover.
Jin-Gitaxias, Prophet of the Great Work8WW
Legendary Creature - Praetor
This spell can't be the target of blue spells.
Flying, hexproof from blue
At the beginning of your end step, your life total becomes equal to your starting life total.
At the beginning of each opponent's end step, that player's life total becomes 10.
Sheoldred, Who Murmurs Humbly5WW
Legendary Creature - Praetor
Sheoldred can't be blocked by black creatures.
At the beginning of your upkeep, return all creature cards with power 2 or less from your graveyard to the battlefield.
At the beginning of each opponent's upkeep, destroy all creatures with power 5 or greater that player controls.
Vorinclex, Call of Surmounting6WW
Legendary Creature - Praetor
Grapple (This creature can't be blocked by more than one creature.)
Prevent all damage that would be dealt to Vorinclex, Call of Surmounting by green sources.
Whenever a creature you control becomes tapped, you may put an Aura or Equipment card from your hand onto the battlefield attached to that creature.
Whenever a creature an opponent controls becomes tapped, it doesn't untap during its controller's next untap step. Destroy all Auras and Equipment attached to that creature.
Next: Another way to make aggro good in the format.
Ugin, the Lost Elder7
Legendary Creature - Elder Dragon
At the beginning of your upkeep, sacrifice Ugin unless you pay 7.
Whenever Ugin deals combat damage to a player, spells you cast cost 7 less to cast and you may cast spells as though they had flash until the beginning of your next turn.
When Ugin dies or is put into the command zone from the battlefield, your life total becomes 21.
Next: A coin-flip-oriented commander who isn't red.
Gamela the Pulsating2RRR
Legendary Creature - Sphinx RRR: Gamela the Pulsating gains flying and trample until end of turn.
Whenever Gamela the Pulsating deals combat damage to a player, instant and sorcery spells you cast cost X less to cast and instant and sorcery spells that player casts cost "pay X life" more to cast until the end of your next turn, where X is the damage dealt in this way. The Equiloreans are wise but not all are peaceful.
Next: Someone who deals with poison or energy counters
Legendary Planeswalker - Ugin
+3: Master Ugin deals 1 damage to each opponent and each creature and planeswalker your opponents control.
-3: Search your graveyard, library, and/or the exiled cards you own for a planeswalker card, reveal it, and put it into your hand. If you searched your library in this way, shuffle it.
-5: Exile up to one target creature, one target enchantment, and one target planeswalker.
-13: Put all other nonland cards you own from everywhere but your library into your hand. Until end of turn, whenever you cast an instant or sorcery spell, copy it and you may choose new targets for the copy, and whenever a nontoken permanent enters the battlefield under your control, create a nonlegendary token that's a copy of it.
Master Ugin can be your commander.
Next: A legendary creature that becomes a noncreature artifact.
Tareek the TroublesomeUU
Legendary Creature - Imp Spellshaper
Whenever a player taps a land named Teferi's Isle for mana, that player adds an additional UU. U, T, Discard a card: Until end of turn, whenever a player taps an Island for mana, that player adds an additional U. UU, T, Discard a card: Simultaneously, all phased-out creatures phase in and all creatures with phasing phase out.
Rawn, Gaea's ClawBRGW
Legendary Creature - Kavu
When Rawn enters the battlefield, put a +1/+1 counter on each other Kavu you control. If it was kicked, instead put three +1/+1 counters on each other Kavu you control.
Bayul, Sainted Loxodon3GW
Legendary Creature - Elephant Cleric
When Bayul enters the battlefield, untap all creatures you control.
Other Elephants you control have indestructible and trample.
Dayal, Consul of Ports3WU
Legendary Creature - Vedalken Artificer
Spells that target Dayal cost 2 more to cast. T: Add CC for each Vedalken you control. Spend this ability only to cast artifact spells or activate abilities of artifacts. 3G, T: Search your library for an artifact creature card, reveal it, and put it into your hand, then shuffle your library.
Ilorir, the Hooded FireRR
Legendary Enchantment Creature - Wizard
Whenever an enchanted creature or an enchantment creature you control deals combat damage to a player, put a kindling counter on Ilorir.
Remove three kindling counters from Ilorir: If an enchantment or enchanted source you control would deal damage this turn, it deals twice that much damage instead and that damage can't be prevented.
Remove nine kindling counters from Ilorir and sacrifice it: Destroy all non-enchantment, non-enchanted permanents.
Legendary Creature - Orc Barbarian
Whenever Burukul Razorshoulders or another creature with haste enters the battlefield under your control, you may pay 1. If you do, that creature deals damage equal to its power to any target. 5G: Burukul Razorshoulders gets +4/+3 until end of turn. Activate this ability only once each turn.
Aedven, Tree of SplendorGGWWUU
Legendary Creature - Treefolk Wizard
Creatures you control with hexproof get +4/+8.
Creatures you control with indestructible get +4/+8. GGWW: Aedven gains trample and indestructible until end of turn. WWUU: Aedven gains lifelink and hexproof until end of turn.
Zaido of Glinting-Disk Prairie1WU
Legendary Creature - Shapeshifter Cleric
Whenever a creature attacks you or a planeswalker you control, you may have Zaido of Glinting-Disk Prairie gain all activated and triggered abilities of that creature until end of turn. You may spend mana as though it was mana of any type to activate those abilities and you may activate them any time you could cast an instant and as though it was your turn.
Legendary Creature - Goblin Shaman
Protection from lands and from Samurai T: Haku-Hoku, Headbasher deals 5 damage to target player who had two or more lands enter the battlefield under their control this turn or who controls ten or more lands.
Next: Someone with a drinking problem who is nonred
Tui Zhai, Mistfire Apostle(W/U)
Legendary Creature - Human Monk
Flying, defender, prowess 2W: Tui Zhai, Mistfire Apostle gains protection from the color of your choice and can attack as though it didn't defender until end of turn. 2U: Tui Zhai, Mistfire Apostle gets +2/-1 and can attack as though it didn't have defender until end of turn.
Next: Commander who cares about tokens and/or legendary lands.
Neai, the Doom Zephyr4UR
Legendary Creature - Elemental Avatar
Flying, menace, stalwart (This creature can be assigned to block an additional time each combat.)
Prevent all damage that would be dealt to and dealt by Neai, the Doom Zephyr. 2(U/B)(B/R)(U/R): Damage can't be prevented this turn. Permanents lose hexproof, indestructible, and protection until end of turn. Until end of turn, players can't gain life and planeswalkers can't gain loyalty. Whenever a player is dealt damage this turn, put that many cards from the top of that player's library into that player's graveyard.
Rinkoshi, Oni of Marrow2BR
Legendary Creature - Demon
Pay 2 life: Rinkoshi, Oni of Marrow gains indestructible until end of turn.
If an Arcane spell you control would deal damage or cause you to add mana, it deals twice that damage or adds twice that amount of mana instead.
Next: A commander with unusual creature type(s) for its color(s).
Ferdhari, Hierarch of Funerals2GG
Legendary Creature - Human Druid
Exalted T: Add WU to your mana pool. Ferdhari, Hierarch of Funerals gains exalted until end of turn. (Multiple instances of exalted trigger separately. Morbid - At the beginning of your end step, if a creature died this turn, you may put a permanent card with exalted from your hand onto the battlefield. "There is a certain somber attractiveness to sigils pressed in times of great mourning."
Vulsing, Oracle il-Vec5WB
Legendary Creature - Human Wizard
Suspend 6 - WB
When Vulsing, Oracle il-Vec enters the battlefield, you may put a Saga card from your hand or graveyard onto the battlefield. Then choose a number of permanents or suspended cards equal to Vulsing's toughness. For each of those permanents or suspended cards, put up to X counters of a type of your choice on it or remove that many from it, where X is the number of enchantments you control. (Only +1/+1 and -1/-1 counters modify power and toughness.) "First the overlay, then the time rifts, now some 'Sarkhan' made a mess? A time traveler's work is endless."
Next: A commander who cares about power and toughness in a way other than "N or less"/"N or greater".