Apex, First and Final

+2: Exile target Sliver. You get an emblem with all abilities of the exiled card. Exile it when you don't control an Apex planeswalker.
0: Until end of turn, Apex, First and Final becomes a 5/5 Sliver creature that's still a planeswalker. Prevent all damage that would be dealt to it.
-X: Create a token that's a copy of a card exiled with Apex, First and Final. X is the converted mana cost of that card.