Raichu

Evolve Pikachu ({2}, Reveal this card from your
hand: Put it on top of target Pikachu you control.
Evolve only as a sorcery.)
{t}: Raichu gets {e}.
{e}{e}, {t} - Thunderbolt (Raichu deals 5 damage
to target creature or Planeswalker. Flip a coin.
If heads, that permanent doesn't untap during its
controller's next untap step and its activated
abilities can't be activated until it untaps.)