This seems exceptionally strong. Turning something into a double-strength Goblin Sharpshooter? You'll note that Thornbite Staff's granted ping ability cost , and that was only pinging for 1. Since you're charging then , I think it miight be okay to let something ping for 1 without any mana cost, but 2 damage along with the untap is just excessive.

Yeah, wow.

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Sorcery
Cast ~ only if you control a creature.
Destroy any number of target creatures with power 2 or less.

Is... actually, that's fair. What's not fair is that this then remains on the board, ready to do it again and again and again.

Wow... this is weird. Did someone else submit a card very much like this at one point?

On a separate side note, Vitenka... I think you want to be aiming the damage at opponents, not at creatures. If I equipped this to a... oh, let's just say Dimir House Guard, I would only need to have so many creatures in play before I won the game. 5 creatures = 10 damage.

Oh yeah; if you've got some other way of killing creatures (like, say, a second copy...) then this becomes utterly insanely powerful.

But at that point you've got "Two specific cards needed and a bunch of other stuff in play" so it's probably not unfair to allow such a combo. (After all, five creatures probably CAN cause 10 damage, by attacking.)

I kinda want that sorcery, now, though.

I'll just note that -then- is much less of a restriction than . Exalted Angel was played in tournaments because she cost -then-; if she cost she wouldn't be touched with a bargepole.

should be more of an uncommon now