Poison Breath2B
Enchantment- Aura
Enchant creature.
If enchanted creature is attacking or blocking, target attacking or blocking creature gains -1/-1.
If enchanted creature deals damage to a player, they discard a card.
lookashiny, I noticed something else with this card. There is a corner case where you put it on an opponent's creature, and you can use the -1/-1 trigger on the enchanted creature or another creature that player is attacking/blocking with. This could be used as a pseudo-pacifism on a 1 toughness or 1 power creature, or to scare your opponent from gang-attacking if they have something like llanowar elves. Not sure if you're intending on this.
void_nothing, lookashiny (but the text needs to be edited to work as intended)
Rebel's Charm1R
Instant (R)
Choose one:
-~ deals 2 damage to any target.
-Destroy target artifact.
-Discard two cards, then draw a card for each card discarded this way.
Cultist's Charm1B
Instant (R)
Choose one:
-Target creature gets -2/-2 until end of turn.
-Return target creature card from your graveyard to your hand.
-Exile all cards from each opponents' graveyard.
Hideout1W
Enchantment (U)
Flash
When ~ enters the battlefield, exile target creature you control.
Sacrifice ~: Return the exiled creature to the battlefield. It gains first strike until end of turn.
Orzhovan Recitation2BB
Enchantment (R)
At the beginning of your upkeep, target player exiles a card from their hand. If 3 or more cards are exiled this way, you may transform ~.
// Ghost Council's Prescence
Enchantment (R)
Once during your turn, you may play a card exiled with ~ without paying its mana cost.
Triceratops2GG
Creature - Dinosaur (C)
When ~ enters the battlefield, you may search your library for up to three cards named ~, reveal them, put them into your hand, then shuffle your library.
3/3
Reclaim the WildRG
Sorcery (R)
Reclaim the Wild can't be countered.
Gain control of all lands target player controls until end of turn. Untap those lands. "The soil is the property of all."
Minor nitpick: You need to say "target opponent" because if you can target yourself with it, it becomes way too good in the right deck as a 2 mana early harvest. And it would get even better if you had two, because one can steal your opponent's lands, then the other lets you untap all of your and your opponent's lands.
Fabled Sword3
Artifact - Equipment (R)
Equip 4
When ~ enters the battlefield, search your library for a creature card, reveal it and put it into your hand.
When you cast a creature spell that shares a name with the card you search, you may attach ~ to that creature.
Equipped creature has vigilance and double strike.
lookashiny, I noticed something else with this card. There is a corner case where you put it on an opponent's creature, and you can use the -1/-1 trigger on the enchanted creature or another creature that player is attacking/blocking with. This could be used as a pseudo-pacifism on a 1 toughness or 1 power creature, or to scare your opponent from gang-attacking if they have something like llanowar elves. Not sure if you're intending on this.
Rebel's Charm 1R
Instant (R)
Choose one:
-~ deals 2 damage to any target.
-Destroy target artifact.
-Discard two cards, then draw a card for each card discarded this way.
Cultist's Charm 1B
Instant (R)
Choose one:
-Target creature gets -2/-2 until end of turn.
-Return target creature card from your graveyard to your hand.
-Exile all cards from each opponents' graveyard.
Apprentice's Charm 1U
Instant (R)
Choose one
-Return target creature to it's owner's hand.
-Counter target spell unless it's controller pays 1.
-Scry 1, then draw a card.
Hideout 1W
Enchantment (U)
Flash
When ~ enters the battlefield, exile target creature you control.
Sacrifice ~: Return the exiled creature to the battlefield. It gains first strike until end of turn.
Whirlpool Kelpie 3UU
Creature - Beast (U)
Persist
When ~ enters the battlefield, return target creature to it's owner's hand.
2/2
Orzhovan Recitation 2BB
Enchantment (R)
At the beginning of your upkeep, target player exiles a card from their hand. If 3 or more cards are exiled this way, you may transform ~.
//
Ghost Council's Prescence
Enchantment (R)
Once during your turn, you may play a card exiled with ~ without paying its mana cost.
Way of the Warrior 1G
Enchantment (U)
At the beginning of combat on your turn, you may put a +1/+1 counter on target creature.
Meddling Kids 2U
Creature - Human Wizard (R)
When a player casts the second spell of a turn, you may sacrifice ~. If you do, counter that spell.
1/3
Frontier Pledge 3WW
Enchantment (R)
At the beginning of combat on your turn, create a 1/1 white Soldier creature token with exalted.
Triceratops 2GG
Creature - Dinosaur (C)
When ~ enters the battlefield, you may search your library for up to three cards named ~, reveal them, put them into your hand, then shuffle your library.
3/3
Prismatic Deflection 3U
Instant (U)
If you control two permanents with different colors, ~ costs 2 less to cast..
Counter target monocolored spell.
Minor nitpick: You need to say "target opponent" because if you can target yourself with it, it becomes way too good in the right deck as a 2 mana early harvest. And it would get even better if you had two, because one can steal your opponent's lands, then the other lets you untap all of your and your opponent's lands.
Fabled Sword 3
Artifact - Equipment (R)
Equip 4
When ~ enters the battlefield, search your library for a creature card, reveal it and put it into your hand.
When you cast a creature spell that shares a name with the card you search, you may attach ~ to that creature.
Equipped creature has vigilance and double strike.
Eldrazi Leechseed 3
Creature - Eldrazi Drone (U)
T: Add C.
C, T: Add two mana of any one color.
2/2