Comet Azur

You may only cast Comet Azur if you control a legendary creature.

Comet Azur deals X damage to target player.
Draw a card.

Refocus {x}{u}, X Mind. (When this spell resolves, exile it. You may cast this spell from
exile for its Refocus costs. If you do, tap creatures with Mind counters on them and remove the required number of counters from them.)