Spinda

Protection from Spirits.
Flanking (Whenever a creature without flanking
blocks this creature, the blocking creature gets -1/-1
until end of turn.)
You may exert Spinda as it attacks. If you do, tap
each other attacking or blocking creatures. Reveal
cards from the top of your library for each
creature tapped this way. If any are creature
cards, the tapped creature deals damage to itself
equal to its power. Then shuffle the revealed
cards back into your library.