Disgruntled Snowman

Whenever an opponent casts a spell that targets you or a permanent you control, Disgruntled Snowman gains Dismember {0} until the end of turn. ({0}, {t}: Put a -1/-1 counter on target creature and create a 0/1 colorless Appendage creature token.)
Creatures can't attack you unless their controller pays {1} for each Appendage you control.