Nice. As a mythic, you could make it more like one from the titan cycle: ie when etbs or attacks or dies, you may do x my idea might be op, but this seems a little bit weaker than mythic. kind of rarish

Idk, IMO even Deathrender feels more mythic than this. This card is a very sad thing if you don't have any (desirable) creatures in hand or if its removed in a way that doesn't trigger the "dies" trigger.

Yeah; "attacks or dies" would be much more "Wow"

Right now, this is just a moderately meaty vanilla that opponents are a little bit scared to kill.

I personally would solve it by putting Pattern of Rebirth on the creature, then. The repeatable option from hand just makes it less likely that the death-trigger actually will matter once you get to attack.

Or, personally, just make this a rare and live with the variance as something you build around.

good idea, that's definitely getting added.

very flavorful

So now it's a 6/6 that the opponent at worst CANNOT kill; and at best DARE not kill. Cannot, because, well, it replaces itself with one of its three brothers. And dare not, because it now fetches the very best creature you have.

And... well, it's five mana and in and of itself isn't that terrifying - since it doesn't trample, it can just be chump blocked.

It's good, it feels "Oh shit / wow", but it's not gonna dominate every game ever? Seems sensible. The one concern is that of all card-search; will it tend to just go get the same thing every time? And because it searches when it died, I think probably not. You'll go for things good in situation.

It's still terrifying though. The obvious deck to play it in is "Any time you get a threat on the table, I cast Wrath of God", I fear.

This can only tutor creatures, how could it WoG?

I mean - that's what your deck does. Sits there and threatens to wrath; because blowing up your own creature is now a good thing.

Oh right. this breaks symmetry effects really well then.

yup big ooof