Plus, you're not resistant to all spells - board wipes and certain sacrifice effects will still lay your creatures low
Mew Ex is also among the best cards of the new set, thanks to Genome Hacking, which can copy any other attack
And when you do manage to gang up and kill him, it's not like the Commander tax on a 3 mana leader is overly prohibitive to replaying Leo
If I untap a permanent with a spell or ability, I could also tap it again that same turn , as well as blocking with it if its a creature
Best White/Blue Commons in Wilds of Eldraine limited : Cooped Up, Moment of Valor, Frostbridge Guard, Snaremaster Sprite, Diminisher Witch With the Snow Queen deck, you want creatures and cards that help you keep getting ahead by disrupting your opponent and letting you attack