Oxen you control have double strike.
Whenever Bruse Tarl enters 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.

Enchant creature
Enchanted creature gets +2/+2 and has flying.
: Enchanted creature gets +1/+0 until end of turn.

Destroy target creature that blocked or was blocked by a legendary creature this turn.

Choose one or more —
• Destroy target artifact.
• Destroy target creature.
• Destroy target enchantment.
• Destroy target land.
• Destroy target planeswalker.

Yorvo enters with four +1/+1 counters on it.
Whenever another green creature you control enters, put a +1/+1 counter on Yorvo. Then if that creature's power is greater than Yorvo's power, put another +1/+1 counter on Yorvo.

Exile target nonland permanent.

Sliver creatures you control have "When this creature enters, you may exile target creature an opponent controls until this creature leaves the battlefield."

Flying
, : Add one mana of any color.

As this creature enters, you may choose a nonland permanent.
Activated abilities of the chosen permanent can't be activated.
This creature has all activated abilities of the chosen permanent except for loyalty abilities. You may spend mana as though it were mana of any color to activate those abilities.

As an additional cost to cast this spell, sacrifice an artifact or creature.
Draw two cards.
Flashback (You may cast this card from your graveyard for its flashback cost and any additional costs. Then exile it.)

Target opponent reveals their hand. You choose a nonland card from that player's graveyard or hand and exile it.
Cycling (, Discard this card: Draw a card.)

As an additional cost to cast this spell, sacrifice a Goblin.
Goblin Grenade deals 5 damage to any target.

Put a flood counter on target land. That land is an Island in addition to its other types for as long as it has a flood counter on it. If you control a Merfolk, draw a card.

Shower of Coals deals 2 damage to each of up to three targets.
Threshold — Shower of Coals deals 4 damage to each of those permanents and/or players instead if there are seven or more cards in your graveyard.

This artifact enters with X void counters on it.
At the beginning of your upkeep, exile this artifact, all creatures and planeswalkers with mana value less than or equal to the number of void counters on it, and all creature and planeswalker cards in graveyards with mana value less than or equal to the number of void counters on it.

Forestwalk (This creature can't be blocked as long as defending player controls a Forest.)

Whenever another artifact you control enters, put a +1/+1 counter on this creature. If that artifact is a Contraption, this creature gains lifelink until end of turn.

Sunburst (This creature enters with a +1/+1 counter on it for each color of mana spent to cast it.)
Flying

: This creature deals 1 damage to target creature that was dealt damage this turn. When that creature dies this turn, flip this creature.

The owner of target permanent shuffles it into their library, then reveals the top card of their library. If it's a permanent card, they put it onto the battlefield.