Legendary Planeswalker — Urza
You may activate the loyalty abilities of Urza twice each turn rather than only once.
+2 : Artifact, instant, and sorcery spells you cast this turn cost

less to cast. You gain 2 life.
+1 : Draw two cards, then discard a card.
0 : Create two 1/1 colorless Soldier artifact creature tokens.
−3 : Exile target nonland permanent.
−10 : Artifacts and planeswalkers you control gain indestructible until end of turn. Destroy all nonland permanents.
When two cards are exiled and melded, they each leave the battlefield, then return together as one new object with no relation to either of the objects that left the battlefield. Counters, Auras, Equipment, and other effects that affected those two cards don't affect the melded permanent.