Hivemeld Pods

At the beginning of combat on your turn, put
target permanent on the bottom of its owner's
library. Then, Chamber X where X is the mana
value of that permanent. (Exile the bottom X cards
of your library to the sanctum. Any player can cast
spells and play lands in the sanctum.)
Only you can cast cards and play lands from the
sanctum. Any time you would Chamber, you may
have another player do so instead.
Spells you cast from anywhere besides your hand
cost {2} less to cast.