My opponent attacks me with a Plague Stinger. I pay to turn my Glint Hawk Idol into a 2/2 and block. At the end of the turn, when the Idol becomes just an artifact again, does it keep the -1/-1 counter or does the counter fall off?
It keeps the counter. Said counter obviously won't do much until the Idol becomes a creature again, but it stays there in the meantime. See Llanowar Reborn, since there's nothing in the comprehensive rules that explicitly says this.
Thanks to GR @ Yavin IV Studios for the signature!
Thanks to GR @ Yavin IV Studios for the signature!