Guildpact

Destroy each creature with converted mana cost 3 or less.

Flip a coin. If you win the flip, take an extra turn after this one.

Destroy target nonwhite, nonblack creature. Create a 1/1 white Spirit creature token with flying. Haunt (When this spell card is put into a graveya...

Replicate {3}{U} (When you cast this spell, copy it for each time you paid its replicate cost. You may choose new targets for the copies.) Choose t...

Flying When Sky Swallower enters the battlefield, target opponent gains control of all other permanents you control.

Bloodthirst 3 (If an opponent was dealt damage this turn, this creature enters the battlefield with three +1/+1 counters on it.) Flying {R}{R}{R}: ...

{3}: Mizzium Transreliquat becomes a copy of target artifact until end of turn. {1}{U}{R}: Mizzium Transreliquat becomes a copy of target artifact,...

{2}, {T}: Exile target card from a graveyard. {2}{W}{B}, {T}, Sacrifice Moratorium Stone: Exile target nonland card from a graveyard, all other car...

{3}{B}, {T}: Target creature gains swampwalk until end of turn. (It can't be blocked as long as defending player controls a Swamp.) {1}{B}: Regener...

Parallectric Feedback deals damage to target spell's controller equal to that spell's converted mana cost.

Replicate {1}{R} (When you cast this spell, copy it for each time you paid its replicate cost. You may choose new targets for the copies.) Target M...

If Leyline of Lightning is in your opening hand, you may begin the game with it on the battlefield. Whenever you cast a spell, you may pay {1}. If ...

Trample Whenever Borborygmos deals combat damage to a player, put a +1/+1 counter on each creature you control.

Prevent the next 3 damage that would be dealt to any target this turn. Draw a card.

Whenever Bioplasm attacks, exile the top card of your library. If it's a creature card, Bioplasm gets +X/+Y until end of turn, where X is the exile...

When Ogre Savant enters the battlefield, if {U} was spent to cast it, return target creature to its owner's hand.

{T}: Target creature gets +1/+1 until end of turn.

Flying When Shrieking Grotesque enters the battlefield, if {B} was spent to cast it, target player discards a card.

When Gruul Scrapper enters the battlefield, if {R} was spent to cast it, it gains haste until end of turn.

Enchant creature Creatures you control that are enchanted get +1/+1 and have first strike.

Bloodthirst 1 (If an opponent was dealt damage this turn, this creature enters the battlefield with a +1/+1 counter on it.) {2}{R}: Target creature...

Target player discards a card. Haunt (When this spell card is put into a graveyard after resolving, exile it haunting target creature.) When the cr...

You gain 1 life for each player. Haunt (When this spell card is put into a graveyard after resolving, exile it haunting target creature.) When the ...

When Crystal Seer enters the battlefield, look at the top four cards of your library, then put them back in any order. {4}{U}: Return Crystal Seer ...