Nightcrawler, Angelic Demon

If Nightcrawler, Angelic Demon is targeted by an opponents spell or activated ability, Nightcrawler, Angelic Demon phases out until end of turn. If another mutant card is targeted by an opponents spell or activated ability, Nightcrawler, Angelic Demon and that mutant card phase out until end of turn.
When a mutant card phases into play, it gains a +1/+1 counter