Flying
, Sacrifice Hydromorph Gull: Counter target spell that targets a creature you control.

Flying
When Hypnox enters the battlefield, if you cast it from your hand, exile all cards from target opponent's hand.
When Hypnox leaves the battlefield, return the exiled cards to their owner's hand.

, Discard a card: Prevent the next 3 damage that would be dealt to any target this turn.
, Sacrifice Hypochondria: Prevent the next 3 damage that would be dealt to any target this turn.

Haste
At the beginning of the end step, sacrifice Ichorid.
At the beginning of your upkeep, if Ichorid is in your graveyard, you may exile a black creature card other than Ichorid from your graveyard. If you do, return Ichorid to the battlefield.

As an additional cost to cast this spell, discard X cards.
Search your library for X cards. Then shuffle your library and put those cards on top of it in any order.

The next creature spell you cast this turn can't be countered.
Draw a card.

You gain life equal to the number of creature cards in all graveyards.

Kamahl's Sledge deals 4 damage to target creature.
Threshold — If seven or more cards are in your graveyard, instead Kamahl's Sledge deals 4 damage to that creature and 4 damage to that creature's controller.

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)
: Target black creature gets -2/-0 until end of turn.

: Untap target land.
Threshold — : Untap up to three target lands. Activate this ability only if seven or more cards are in your graveyard.

When Laquatus's Champion enters the battlefield, target player loses 6 life.
When Laquatus's Champion leaves the battlefield, that player gains 6 life.
: Regenerate Laquatus's Champion.

Whenever a permanent other than Last Laugh is put into a graveyard from the battlefield, Last Laugh deals 1 damage to each creature and each player.
When no creatures are on the battlefield, sacrifice Last Laugh.

Counter target spell with converted mana cost 3 or less. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.

When Llawan, Cephalid Empress enters the battlefield, return all blue creatures your opponents control to their owners' hands.
Your opponents can't cast blue creature spells.

When Longhorn Firebeast enters the battlefield, any opponent may have it deal 5 damage to them. If a player does, sacrifice Longhorn Firebeast.

Flying
, Sacrifice Major Teroh: Exile all black creatures.

When Mesmeric Fiend enters the battlefield, target opponent reveals their hand and you choose a nonland card from it. Exile that card.
When Mesmeric Fiend leaves the battlefield, return the exiled card to its owner's hand.

Vigilance
: Prevent the next 1 damage that would be dealt to any target this turn.

Target player discards a card for each Swamp you control.

Exile all cards from all graveyards.