Who chooses which phase they skip? The intent of gaining control of the enchantment is plain; but the wording needs work (since unless you resort to "And in response {headbutt}" players don't generally deal damage.)

I think what Vitenka means is that you need "Whenever a source you control deals...".

I must admit, this seems a bit weak. Since, in most games, players won't have more than 20 life, this card in a best case scenario will only ever hit a player 3 times. Therefore, the worst that I can imagine this card doing is forcing the opponent to skip three draw steps... and, quite frankly, Fugue is arguably better than that. I don't think the card is bad, per se, but I'd drop it to , or make it a creature.

Edit: Oh, hold it. I assume you mean that they skip their "next" draw step or main step, right? Otherwise, this card went from underpowered to super-happy-fun-time-good.

You can't downcost it too much - it's a lockdown, in red.

It's not much of a lockdown. Giving them the choice is huge: if they have a card that'll help they can choose to skip the draw and still cast it, if they don't then they can choose to skip the main phase and still draw.

­Fatespinner does the same thing for a lot cheaper. And as jmg says, you only get this if you're hitting them for 5 a turn, and frankly at that point you're already winning.

If they choose it's a fair bit weaker, yes. But if you choose, it's "Dragon to the face, and you can't counter attack, so I'll do it again next turn." time.

Why would you get to choose? The templating isn't perfect, but I'd have thought that "that player chooses" is pretty clear.