Shadow, Elemental Fist

Reach

When Shadow, Elemental Fist enters, you get
{e}{e}{e}{e} (four energy counters).

Whenever Shadow attacks, you may pay {e}{e}. If
you do, choose one of the following:
• Shadow gains haste until end of turn.
• Shadow gains double strike until end of turn.
• Shadow gains vigilance until end of turn