How does Ice Cauldron work?
The basic nature of Ice Cauldron is this: you can use it to store both a spell from your hand and the mana needed to pay for that spell. After the spell has been stored on the Cauldron, you can play the spell as if it were in your hand. This mea ns that you must follow all normal timing rules, targeting rules, and so on. Typically, you will tap the Cauldron for the mana you stored in it before playing the spell.
