Kromat, Frostchild Of Kyun

(You may pay the {s} instead of {u} while casting this)
Flying
Note the amount of snow mana you spent to cast Kromat. Whenever Kromat enters the battlefield
or attacks, deal 2 damage to X random targets
where X is the amount of snow mana you spent
to cast Kromat up to three. They don't untap in
their next untap phase.