The next time a source of your choice would deal damage to you this turn, instead that source deals that much damage to you and Eye for an Eye deals that much damage to that source's controller.

When Barrowin enters, venture into the dungeon. (Enter the first room or advance to the next room.)
Whenever Barrowin attacks, return up to one creature card with mana value 3 or less from your graveyard to the battlefield if you've completed a dungeon.

Tap up to two target creatures.
Cycling (, Discard this card: Draw a card.)

Destroy target non-Angel, non-Demon, non-Devil, non-Dragon creature.

Defender
When this creature enters, draw a card.

When this creature enters, you may search your library for a basic land card or a Desert card, reveal it, then shuffle and put it on top.
: Target creature you control gets +1/+0 until end of turn. Activate only as a sorcery.

Creatures you control but don't own are Mercenaries in addition to their other types.
At the beginning of your upkeep, exile the top X cards of target opponent's library, where X is the number of outlaws you control. Until end of turn, you may cast spells from among those cards, and mana of any type can be spent to cast those spells.

Target player draws two cards and loses 2 life. Put a +1/+1 counter on up to one target creature.

Destroy target artifact or land.

Destroy target creature with flying. You gain 2 life.

Flash
When this creature enters, draw X cards, where X is the number of creatures that died under your control this turn.

Counter target instant spell.

Flying
When this creature leaves the battlefield, choose an opponent who controls more lands than you. Search your library for a number of Plains cards equal to the difference, reveal those cards, put one of them onto the battlefield tapped and the rest into your hand, then shuffle.

When this creature enters, you become the monarch.
This creature can block an additional creature each combat as long as you're the monarch.

When this creature enters, scry 2. (Look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)
: Add one mana of any color.

All creatures have haste.
Whenever a player taps a basic land for mana, that player adds one mana of any type that land produced.

When this enchantment enters, exile target nonland permanent an opponent controls until this enchantment leaves the battlefield.

Other Squirrels you control get +1/+1.

Each creature deals damage to itself equal to its power.

If damage would be dealt to this creature while it has a +1/+1 counter on it, prevent that damage and remove a +1/+1 counter from this creature.
Landfall — Whenever a land you control enters, put a +1/+1 counter on this creature.