Galactus is a being of unbelievable power, but there might be hope at stopping him from consuming our reality.
Each of his attacks will last 2 turns: 1 where he destroys a random tile, and the next where all surrounding tiles affected. While his fist is down, you can try and attack him, but the chances you win are low.
GALACTUS
300 Health
6 Defense
(Shockwave deals 30 damage)
Turn 1: Fist comes down and destroys tile
Turn 2: Shockwave in a 3x3 around where the fist landed