Kakyoin, Stardust Crusader

Reach, Haste
{t}, {r}{g}{3} : Emerald Splash (Tap Kakyoin and
pay the mana cost. Target opponent must sacrifice a creature they control or lose 4 life.)
Add a +1/+1 counter to Kakyoin for each other
card with Stardust Crusader in its name that you
control.