Mountain

Act of Treason

Gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn. (It can attack and {T} this turn.)

Menace (This creature can't be blocked except by two or more creatures.)

When Gravedigger enters, you may return target creature card from your graveyard to your hand.

This land enters tapped.
When this land enters, you gain 1 life.
{T}: Add {B} or {R}.

When Footlight Fiend dies, it deals 1 damage to any target.

Annihilating Fire deals 3 damage to any target. If a creature dealt damage this way would die this turn, exile it instead.

Enchant creature
Enchanted creature gets -2/-2.
At the beginning of the upkeep of enchanted creature's controller, that player loses 2 life.

Flying
{R}: Dragon Hatchling gets +1/+0 until end of turn.

Target player discards two cards.
Cycling {2} ({2}, Discard this card: Draw a card.)

You draw a card and you lose 1 life. (Then exile this card. You may cast the creature later from exile.)