I like the card, but I think I'd make the upped one cost 1 more, and make an exemption for pillars/pends, as has already been mentioned. It would be extremely OP to chain these on the first few turns with time towers. If you had a few of these in the opening hand and played first, you could keep them from playing anything, and even when you ran out, they'd be able to play maybe one tower off their mark. If you were a real dick, that's when you'd play steal. You are playing this card in ghostmare, aren't you?