First strike

Whenever Mathidi, Stalwart Slayer enters the battlefield, gain 2 life, create a food token then put a +1/+1 counter on target creature.

Whenever Mathidi, Stalwart Slayer deals combat damage to a player, if you have 40 or more life, transform her, otherwise, exile her then return her to the battlefield under her owners control.

: Whenever you would gain life, instead gain twice as much.

+1: Gain 2 life. You create a food token then target player creates a food token.

-2: Put a +1/+1 and lifelink counter on target creature. Draw a card

-1: If you have 100 or more life, you win the game.