Eternal Witness

When Eternal Witness enters the battlefield, you may return target card from your graveyard to your hand.

Abrupt Decay

This spell can't be countered.
Destroy target nonland permanent with mana value 3 or less.

{X}, Sacrifice Pernicious Deed: Destroy each artifact, creature, and enchantment with mana value X or less.

{T}, Pay 1 life, Sacrifice Wooded Foothills: Search your library for a Mountain or Forest card, put it onto the battlefield, then shuffle.

Destroy target creature with mana value 3 or less. It can't be regenerated.

Flying
{B}{R}{G}, {T}: Target player draws a card.

{T}, Pay 1 life, Sacrifice Bloodstained Mire: Search your library for a Swamp or Mountain card, put it onto the battlefield, then shuffle.

{T}, Pay 1 life, Sacrifice Verdant Catacombs: Search your library for a Swamp or Forest card, put it onto the battlefield, then shuffle.