Pioneer

[+1]: Mill three cards. If at least one Zombie card is milled this way, each opponent loses 2 life and you gain 2 life. [-2]: Target creature gets ...

[+1]: Create a 1/1 colorless Thopter artifact creature token with flying. [0]: Draw a card. If you control three or more artifacts, draw two cards...

Flying

Counter target creature spell.

{T}: Add one mana of any color.

Skeletons you control and other Zombies you control get +1/+1 and have deathtouch.

Foul Orchard enters the battlefield tapped. {T}: Add {B} or {G}.

When Goblin Instigator enters the battlefield, create a 1/1 red Goblin creature token.

{1}{B}: Return Reassembling Skeleton from your graveyard to the battlefield tapped.

({T}: Add {R}.)

[+1]: Put a +1/+1 counter on each of up to two target creatures. [-2]: Return target creature card with mana value 2 or less from your graveyard t...

Submerged Boneyard enters the battlefield tapped. {T}: Add {U} or {B}.

Defender (This creature can't attack.) {3}, {T}: Target creature can't be blocked this turn.

Whenever you cast an artifact spell, create a 1/1 colorless Thopter artifact creature token with flying. {1}{U}, Sacrifice two artifacts: Draw a card.

Meandering River enters the battlefield tapped. {T}: Add {W} or {U}.

When you cast your next instant or sorcery spell this turn, copy that spell. You may choose new targets for the copy.

Destroy target artifact or enchantment. You gain 4 life.

Other Knights you control get +1/+1. {3}{W}{W}: Knights you control gain double strike until end of turn.

({T}: Add {U}.)

{3}, {T}: Draw a card.

[+2]: You gain 1 life for each creature you control. [-3]: Creatures you control get +2/+2 until end of turn. [-9]: Put X +1/+1 counters on target ...