Nontoken creatures you control get +1/+1 and have vigilance.

Other creatures you control get +1/+1.

: Gain control of target creature an opponent controls until end of turn. Untap that creature. It gains haste until end of turn. Activate only as a sorcery.

All creatures get -4/-4 until end of turn.

Zombies you control get +1/+1.
When Liliana's Mastery enters, create two 2/2 black Zombie creature tokens.

When Siege-Gang Commander enters, create three 1/1 red Goblin creature tokens.
, Sacrifice a Goblin: Siege-Gang Commander deals 2 damage to any target.

Flying
Whenever you cast a noncreature spell, creatures you control get +1/+1 until end of turn.

You may pay and tap an untapped artifact you control rather than pay this spell's mana cost.
Flying

Scry 5, then reveal the top card of your library. If it's a creature card, you draw cards equal to its power and you gain life equal to its toughness.

This spell costs less to cast, where X is the total power of creatures you control.
Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)