Trample, haste

Whenever The Gitrog deals combat damage to a player, you may sacrifice a creature that saddled it this turn. If you do, draw X cards, then put up to X land cards from your hand onto the battlefield tapped, where X is the sacrificed creature's power.

Saddle 1

At the beginning of your end step, if a creature died under your control this turn, the Ring tempts you.

Whenever the Ring tempts you, target opponent reveals cards from the top of their library until they reveal a land card. Put that card onto the battlefield tapped under your control and the rest into their graveyard.

Deathtouch

Whenever a nontoken creature an opponent controls dies, you may pay . If you do, return that card to the battlefield tapped under your control. It's a Treasure artifact with ", Sacrifice this artifact: Add one mana of any color," and it loses all other card types.

First strike, deathtouch

You may play an additional land on each of your turns.

Creatures and nonbasic lands your opponents control enter tapped.

Whenever Thalia and The Gitrog Monster attacks, sacrifice a creature or land, then draw a card.

At the beginning of your end step, target opponent gains control of up to one target creature you control. Put two +1/+1 counters on it and tap it. It's goaded for the rest of the game and it gains "This creature can't be sacrificed." (It attacks each combat if able and attacks a player other than you if able.)

Whenever a creature you own but don't control attacks, you draw a card.

At the beginning of your upkeep, sacrifice a creature.

When you sacrifice this creature, each opponent discards a card, you draw a card, and you gain 2 life.

Trample

At the beginning of your end step, create a number of Food tokens equal to the number of nontoken creatures you had enter the battlefield under your control this turn.

, Sacrifice a Food: Target creature gains indestructible until end of turn. Tap it.

Deathtouch

At the beginning of your upkeep, sacrifice The Gitrog Monster unless you sacrifice a land.

You may play an additional land on each of your turns.

Whenever one or more land cards are put into your graveyard from anywhere, draw a card.

Whenever a creature you control dies, each opponent chooses a creature they control and exiles it.

At the beginning of your end step, if a player controls no creatures, sacrifice Sothera, then put a creature card exiled with it onto the battlefield under your control with two additional +1/+1 counters on it.

Deathtouch, haste

When this creature enters, exile up to one other target creature you control until this creature leaves the battlefield.

Whenever this creature attacks, for each opponent, create a tapped token that's a copy of the exiled card attacking that opponent. At the beginning of your next end step, sacrifice those tokens.

Whenever you sacrifice another creature, exile it. If that creature was a token, put a +1/+1 counter on this creature.

When this creature leaves the battlefield, return each card exiled with it to the battlefield under your control.

At the beginning of your end step, conjure a card named Slimy Dualleech onto the battlefield if you control no Leeches. Otherwise, put a +1/+1 counter on each Leech you control.

, Sacrifice a creature: Add an amount of equal to the sacrificed creature's power.

Ward

At the beginning of combat on your turn, gain control of target creature an opponent controls until end of turn. Untap that creature. It gains haste until end of turn.

Whenever a creature you control but don't own dies, return it to the battlefield under its owner's control and you draw a card.

At the beginning of combat on your turn, each Merfolk creature you control explores. (Reveal the top card of your library. Put that card into your hand if it's a land. Otherwise, put a +1/+1 counter on the exploring creature, then put the card back or put it into your graveyard.)

Whenever Hakbal attacks, you may put a land card from your hand onto the battlefield. If you don't, draw a card.

At the beginning of each end step, if a creature dealt damage by this creature this turn died, put that card onto the battlefield under your control. Sacrifice it when you lose control of this creature.

When Lurking Spinecrawler enters, you may choose a nonland card in your hand. If you do, that card perpetually incorporates and gains "When you cast this spell, each opponent sacrifices a creature. Each opponent who can't discards a card."

Whenever you cast a multicolored spell, for each of that spell's colors, each opponent loses 1 life and you gain 1 life.

Flying

At the beginning of your end step, create a Blood token for each player who lost life this turn.

Whenever Strefan attacks, you may sacrifice two Blood tokens. If you do, you may put a Vampire card from your hand onto the battlefield tapped and attacking. It gains indestructible until end of turn.

Whenever you draw your second card each turn, target opponent loses 2 life and you gain 2 life.

, Sacrifice another creature: Draw a card. You may put a land card from your hand onto the battlefield tapped. If you control eight or more lands, repeat this process once.