Pulse Power

Choose one or more —
• Return target tapped nontoken, non-legendary
creature to its owner's hand or into its owner's
library on position X from the top.
• Up to X target attacking creatures get -X/-0.
• Counter all spells with converted mana cost X.
{bull} Scry X, then draw a card.
Exile twice X cards from the top of your library
for each mode chosen beyond the first. Pay X life
for each mode chosen beyond the second.