When Kellan Joins Up enters the battlefield, you may exile a nonland card with mana value 3 or less from your hand. If you do, it becomes plotted. (You may cast it as a sorcery on a later turn without paying its mana cost.)

Whenever a legendary creature enters the battlefield under your control, put a +1/+1 counter on each creature you control.

Whenever one or more tokens enter the battlefield under your opponents’ control, for each of them, create a tapped token that’s a copy of it. This ability triggers only once each turn.

Whenever one or more tokens enter the battlefield under your control, each opponent loses 1 life and you gain 1 life.

Trample, haste

Whenever The Gitrog, Ravenous Ride 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

Haste

Nontoken creatures you control have “{T}: Create a token that’s a copy of target token you control that entered the battlefield this turn.”

Oxen you control have double strike.

Whenever Bruse Tarl, Roving Rancher enters the battlefield or attacks, exile the top card of your library. If it’s a land card, create a 2/2 white Ox creature token. Otherwise, you may cast it until the end of your next turn.

Reach

When Bonny Pall, Clearcutter enters the battlefield, create Beau, a legendary blue Ox creature token with “This creature’s power and toughness are each equal to the number of lands you control.”

Whenever you attack, draw a card, then you may put a land card from your hand or graveyard onto the battlefield.

When Assimilation Aegis enters the battlefield, exile up to one target creature until Assimilation Aegis leaves the battlefield.

Whenever Assimilation Aegis becomes attached to a creature, for as long as Assimilation Aegis remains attached to it, that creature becomes a copy of a creature card exiled with Assimilation Aegis.

Equip {2}

When Annie Joins Up enters the battlefield, it deals 5 damage to target creature or planeswalker an opponent controls.

If a triggered ability of a legendary creature you control triggers, that ability triggers an additional time.

Flying, trample

Sacrifice three other creatures: You may put a creature card from your hand onto the battlefield. Activate only as a sorcery and only once each turn.

Spree (Choose one or more additional costs.)

+ {2} — Mill four cards. You may put up to two creature and/or land cards from among the milled cards into your hand.

+ {4}{G} — You may put up to two creature cards from your hand onto the battlefield.

+ {1} — Creatures you control with power 4 or greater gain hexproof and indestructible until end of turn.

Reach, trample

Whenever another creature enters the battlefield under your control, put X +1/+1 counters on it, where X is its power.

Plot {3}{G} (You may pay {3}{G} and exile this card from your hand. Cast it as a sorcery on a later turn without paying its mana cost. Plot only as a sorcery.)

When Outcaster Trailblazer enters the battlefield, add one mana of any color.

Whenever another creature with power 4 or greater enters the battlefield under your control, draw a card.

Plot {2}{G} (You may pay {2}{G} and exile this card from your hand. Cast it as a sorcery on a later turn without paying its mana cost. Plot only as a sorcery.)

At the beginning of combat on your turn, put a +1/+1 counter on target creature.

Whenever Ornery Tumblewagg attacks while saddled, double the number of +1/+1 counters on target creature.

Saddle 2 (Tap any number of other creatures you control with total power 2 or more: This Mount becomes saddled until end of turn. Saddle only as a sorcery.)

Vigilance, trample, haste

Goldvein Hydra enters the battlefield with X +1/+1 counters on it.

When Goldvein Hydra dies, create a number of tapped Treasure tokens equal to its power.

Reach

Whenever you commit a crime, look at the top five cards of your library. You may put a land card from among them onto the battlefield tapped. Put the rest on the bottom of your library in a random order. This ability triggers only once each turn. (Targeting opponents, anything they control, and/or cards in their graveyards is a crime.)

Colossal Rattlewurm has flash as long as you control a Desert.

Trample

{1}{G}, Exile Colossal Rattlewurm from your graveyard: Search your library for a Desert card, put it onto the battlefield tapped, then shuffle.

Landfall — Whenever a land enters the battlefield under your control, put a +1/+1 counter on target creature.

{3}{G}{G}: Double the number of +1/+1 counters on each creature you control.

Flying

Spells your opponents cast that target Terror of the Peaks cost an additional 3 life to cast.

Whenever another creature enters the battlefield under your control, Terror of the Peaks deals damage equal to that creature’s power to any target.

Flying, trample

Stingerback Terror gets -1/-1 for each card in your hand.

Plot {2}{R} (You may pay {2}{R} and exile this card from your hand. Cast it as a sorcery on a later turn without paying its mana cost. Plot only as a sorcery.)

Flying, haste

Whenever you cast a noncreature spell, Slickshot Show-Off gets +2/+0 until end of turn.

Plot {1}{R} (You may pay {1}{R} and exile this card from your hand. Cast it as a sorcery on a later turn without paying its mana cost. Plot only as a sorcery.)