MTG Mono White Aggro Deckby Billy

Whenever another creature you control enters, you gain 1 life.

At the beginning of combat on your turn, if you control three or more creatures, this creature gets +1/+1 until end of turn and you gain 1 life.

Flying Whenever another creature you control enters, you gain 1 life.

Lifelink Whenever you gain life, put a +1/+1 counter on Aerith Gainsborough. When Aerith Gainsborough dies, put X +1/+1 counters on each legendary creature you control, where X is the number of +1/+1 counters on Aerith Gainsborough.

Vigilance (Attacking doesn't cause this creature to tap.) Whenever a white creature you control attacks, you gain 1 life.

Exile target artifact, enchantment, or creature with power 4 or greater.

({T}: Add {W}.)