Runic Rampart

Defender

Whenever you cast an instant or sorcery spell, you
may have Runic Rampart get +1/-1 or -1/+1 until
end of turn.

When Runic Rampart dies, if its toughness was less than 1, when you next cast an instant or sorcery spell this turn, copy it X times if its mana value is
X or less, where X is Runic Rampart's power. You
may choose new targets for the copies.