Mythraxis, Sliver Lord

+1: Mythraxis, Sliver Lord becomes a 5/5 Sliver creature with Indestructible Haste, and Trample until end of turn.
-4: Creatures you don't control lose Hexproof and Mythraxis deals 5 damage to any target.
-10: Each opponent gets an emblem that says "All non-sliver creatures you control lose all abilities"