Grunus, Heartening Trickstster

Reach
Whenever Grunus, Heartening Trickstster is
targeted by an opponent spell or ability alone, he phases out. If targeted by an opponent's spell or ability that would deal damage to, exile or destroy multiple permanents you control, he ignores such effects.
Whenever Grunus, Heartening Trickstster attacks alone, he gains flying until the end of the turn.
{1}, {t}, Sacrifice another creature with flying:
Create a food token.