Pillow Fort

Spells your opponents cast cost {1} more to cast
for each charge counter on pillow fort.
{5}: Put a charge counter on Pillow Fort
Remove five charge counters from Pillow Fort:
For the rest of the game, creatures your
opponents control can't attack you unless their controller pays {3} for each creature that's
attacking you.
"My pride and joy." - Grand Arbiter Augustin IV