A.) That second ability is awesome. B.) 90% of the time this is going to read "You win." How many decks have you built that have some amount of enchantment removal? Now imagine this enchantment backed up with a modest amount of counterspells, so that the few Demystifys that you are packing are guaranteed to be countered. Platinum Emperion and Platinum Angel started as 8 and 7cc spells. Granted, they have big creatures attached, but if you removed the creature from Platinum Angel, it would probably still be a 7cc spell...

Yeah, unless you're in a poison-heavy environment, or mass milling or something - this is WAY too cheap for that first ability.

The second one though - I like that second one. It's interesting, you can build around it. Though I fear some players will try it on with "You deal it damage, but its toughness can't change, so dealing it more damage won't help kill it." which is wrong, but I can just hear the whining already.

Reminder text could clear that up. Just something that tells people that damage greater than or equal to toughness kills creatures. It would be a rare occasion to let the players see behind the curtain, too.

You're right, this is way to cheap at 5. I was silly. I feel like Platinum Angel being 7cmc and colorless means this can be 6 with a heavy white commitment, especially since something like Worship only costs 4.

­Platinum Emperion is a better setting for the first ability, both because it's easier to kill (Doom Blade, Fireball, Shatter) and because it helps you end the game after you lock it down.

I agree the second ability is really interesting though.

If I put this on a creature, I'll probably get rid of the first ability, so that it and Platinum Emperion feel more special and separate from one another.

Interesting. Stops Curse of Death's Hold, Black Sun's Zenith, Agony Warp. This would prove a very potent sideboard card for an aggro/midrange deck.

It's also infinite mana with Devoted Druid. Not that there aren't plenty of combos for that already, I guess.

If this is a mythic (and the ability is unusual enough for it to be a mythic), it should be a bigger creature, probably square-stats. I mean, it's not like you can boost it with equipment ;)

Good point. I'd rather keep it in the range of "usable" mana cost, so how does 5/5 for 5 sound?

Looks fine to me.

Sweet. Maybe add a simple static ability so that it's a little more bomb-y in limited?

Hmmm... Vigilance might be flavorfull.

It might be fun to have a red reflection called Instability that sets your creatures' power and toughness to a random value each turn.