We know the first two sets of meld cards, and what they meld into: Urza, Lord Protector and The Mightstone and Weakstone combine into Urza, Planeswalker, showing the moment of Urzas spark igniting in the wake of the activation of the Golgothian Sylex
It has some great stats as a 5/4 for 4 mana, and that attack trigger provides fantastic value
That said, Tymaret still has a serviceable defensive body with two black symbols and an incidentally good ability, and I wont be surprised if he sees some play in a devotion deck
They're pretty cheap, too
If an adventurer card ends up in exile for any other reason than by exiling itself while resolving, it won't give you permission to play it with its primary characteristics
One of whites strengths is the ability to rewrite certain rules to put itself on par or ahead of others