MTG Mono White Aggro Deck by Alamaxi

Whenever this creature attacks while you control a token, this creature gets +2/+0 until end of turn.

When Cottontail Caretaker enters, choose a white creature card in your hand. That card perpetually gains offspring {1}.

When Dedicated Dollmaker enters, exile up to one other target nonland, nontoken permanent. Its controller creates a token that's a copy of it, except it's not legendary and it's an artifact in addition to its other types. {1}{W}: Tokens you control gain indestructible until end of turn. Activate only once.

Flying At the beginning of combat on your turn, target creature you control perpetually gets +1/+0. Then choose a creature card in your hand. It perpetually gets +1/+0.

Whenever one or more other Rabbits, Bats, Birds, and/or Mice you control enter, scry 1. Other Rabbits, Bats, Birds, and Mice you control get +1/+1.

First strike, Lifelink When Stalwart Realmwarden enters, the next noncreature spell target opponent casts costs {2} more to cast.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after IV.) I — Create a 1/1 white Mouse creature token. II, III — Create a token that's a copy of target token you control. IV — Creatures you control get +1/+1 and gain vigilance until end of turn.

Gift a tapped Fish (You may promise an opponent a gift as you cast this spell. If you do, they create a tapped 1/1 blue Fish creature token before its other effects.) Exile target nontoken creature. If the gift wasn't promised, return that card to the battlefield under its owner's control with a +1/+1 counter on it at the beginning of the next end step.

({T}: Add {W}.)