Moldeater2G
Creature - Elemental (U)
Trample
Moldeater can't be blocked by nontoken creatures.
Whenever Moldeater attacks, target opponent creates a 1/1 green Fungus creature token, then you may put a +1/+1 counter on Moldeater for each Fungus creature that player controls.
2/2
Thieldomar Bodem1
Legendary Artifact Creature - Dragon (M)
Flying, first strike, trample
Thieldomar Bodem enters the battlefield with a -1/-1 counter on it for each 2 life spent to cast it.
Pay 2 life, , Remove a -1/-1 counter from Thieldomar: Each opponent loses life equal to Thieldomar's power.
6/6
Leaked Experiment3GG
Sorcery (R)
Kicker 3G
Create four 1/1 green Ooze creature tokens. If Leaked Experiment was kicked, creatures you control get +3/+3 and gain trample and haste until end of turn.
Arms Race2GW
Instant (U)
Create a 1/1 green and white Soldier creature token for each creature that has entered the battlefield this turn, then populate.
Chaotic Soul-Seller9
Creature - Eldrazi Shaman (M)
Emerge 6RR
When you cast Chaotic Soul-Seller, you may exile the top X cards of your library where X equals the highest converted mana cost of creatures that died this turn. Until end of turn, you may play those cards.
First strike
8/6
Messenger of Deceit3B
Creature - Human Assassin (R)
Skulk
At the beginning of your upkeep, put a -1/-1 counter on Messenger of Deceit. 1B, :Move a -1/-1 counter from Messenger of Deceit onto another target creature.
5/5
Votes: RedGauntlet, BrainPo (although I think I'd like it better as W or WU)
Morelai, Dream Thief3UU
Legendary Creature - Wizard (M)
Prowess
Instant and sorcery spells you cast cost 1 less to cast for each spell you have previously cast this turn.
3/4
Vial of WhispersGWU
Enchantment (U)
Exalted
At the beginning of your upkeep, scry 1.
Sacrifice Vial of Whispers: Target creature gets +3/+3 until end of turn.
Prized Hatchlings1U
Artifact Creature - Bird Construct (R)
Flying, hexproof
Whenever a nontoken artifact enters the battlefield under your control, create a 0/1 blue Bird Construct artifact creature token with flying and hexproof. 2U, , Sacrifice three artifacts: Search your library for an artifact card with converted mana cost 6 or greater, reveal that card and put it into your hand, then shuffle your library.
0/1
Contagious SparkR
Instant (U)
Split second
Contagious Spark deals 1 damage to target creature and all other creatures its controller controls with the same name as that creature.
Angelic Sovereign3RW
Creature - Angel (R)
Flying, haste
Whenever Angelic Sovereign attacks, another target creature you control gets +X/+0 until end of turn where X is equal to that creature's power.
At the beginning of your end step, untap up to one target creature you control that dealt combat damage to a player this turn.
3/4
Weapon Rack2
Artifact - Equipment (R)
Whenever equipped creature attacks, you may search your library for an equipment card, reveal it, then shuffle your library and put that card on top of it.
Equip 2
Senzuit Informer1UU
Creature - Merfolk Wizard (M)
Hexproof
Each opponent plays with his or her hand and the top card of his or her library revealed. : Reveal the top card of your library. If it’s an instant card or a card with flash, you may cast it.
2/2
Moldeater 2G
Creature - Elemental (U)
Trample
Moldeater can't be blocked by nontoken creatures.
Whenever Moldeater attacks, target opponent creates a 1/1 green Fungus creature token, then you may put a +1/+1 counter on Moldeater for each Fungus creature that player controls.
2/2
Thieldomar Bodem 1
Legendary Artifact Creature - Dragon (M)
Flying, first strike, trample
Thieldomar Bodem enters the battlefield with a -1/-1 counter on it for each 2 life spent to cast it.
Pay 2 life,
6/6
Preconceived Notions U
Artifact (U)
1,
Leaked Experiment 3GG
Sorcery (R)
Kicker 3G
Create four 1/1 green Ooze creature tokens. If Leaked Experiment was kicked, creatures you control get +3/+3 and gain trample and haste until end of turn.
Arms Race 2GW
Instant (U)
Create a 1/1 green and white Soldier creature token for each creature that has entered the battlefield this turn, then populate.
Chaotic Soul-Seller 9
Creature - Eldrazi Shaman (M)
Emerge 6RR
When you cast Chaotic Soul-Seller, you may exile the top X cards of your library where X equals the highest converted mana cost of creatures that died this turn. Until end of turn, you may play those cards.
First strike
8/6
Messenger of Deceit 3B
Creature - Human Assassin (R)
Skulk
At the beginning of your upkeep, put a -1/-1 counter on Messenger of Deceit.
1B,
5/5
Morelai, Dream Thief 3UU
Legendary Creature - Wizard (M)
Prowess
Instant and sorcery spells you cast cost 1 less to cast for each spell you have previously cast this turn.
3/4
Exploitation Rig
Land (R)
1,
3,
Vial of Whispers GWU
Enchantment (U)
Exalted
At the beginning of your upkeep, scry 1.
Sacrifice Vial of Whispers: Target creature gets +3/+3 until end of turn.
Artifact Creature - Bird Construct (R)
Flying, hexproof
Whenever a nontoken artifact enters the battlefield under your control, create a 0/1 blue Bird Construct artifact creature token with flying and hexproof.
2U,
0/1
Contagious Spark R
Instant (U)
Split second
Contagious Spark deals 1 damage to target creature and all other creatures its controller controls with the same name as that creature.
Angelic Sovereign 3RW
Creature - Angel (R)
Flying, haste
Whenever Angelic Sovereign attacks, another target creature you control gets +X/+0 until end of turn where X is equal to that creature's power.
At the beginning of your end step, untap up to one target creature you control that dealt combat damage to a player this turn.
3/4
Weapon Rack 2
Artifact - Equipment (R)
Whenever equipped creature attacks, you may search your library for an equipment card, reveal it, then shuffle your library and put that card on top of it.
Equip 2
Senzuit Informer 1UU
Creature - Merfolk Wizard (M)
Hexproof
Each opponent plays with his or her hand and the top card of his or her library revealed.
2/2