Because damage remains marked on a creature until the damage is removed as the turn ends, nonlethal damage dealt to white creatures may become lethal if Crovax leaves the battlefield during that turn, and nonlethal damage dealt to nonwhite creatures may become lethal if Crovax enters the battlefield during that turn.
19-03-2021
wotc
If Crovax, Ascendant Hero stops being white, it gives itself -1/-1.
19-03-2021
wotc
If a second Crovax, Ascendant Hero comes under your control, you'll put one into its owner's graveyard due to the "legend rule" at the same time that any creatures getting -2/-2 are put into their owner's graveyard for having 0 or less toughness.
19-03-2021
wotc
Crovax's last ability can be activated only while it's on the battlefield.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.