Symmetra

{x}: Symmetra gets +X/+0 until end of turn.
{1}: Create a 1/1 colorless servo creature token with {x}: +X/+0 until end of turn.
{3}: Create a 0/3 flying wall creature token that must be blocked.
{4}: You get an emblem with: Creatures you control gain haste or Creatures you control get +3/+3.