Tal's Broken Altar

Multicolored permanents lose hexproof and indestructible and can't gain hexproof and/or indestructible.
Multicolored spells cost {x} more to cast, where X
is their mana value.
Sacrifice a multicolored permanent or discard a multicolored card: Tal's Broken Altar phases out.
Any player may activate this ability but only as a sorcery.