Rework undraw

[Seraphor]

I second this, buff the useless button to make it give a much needed MP regen skill, it's a win win. Maybe give it a 60s cd so it aligns with Assize, Aetherflow and Lucid.

In the old system Undraw would throw away useless cards, but in this new system no card is useless, so it leaves you with the choice - do I wanna buff someone, or do I wanna regen some MP - much like SCH's ED.

Except AST's can manage with MP at the moment, and sacrificing a card for MP is a DPS loss, so it still won't be used. (SCH's ED is a DPS gain) And again, we don't need any more buttons. Most ASTs have been ignoring Undraw completely since the job was created, we don't need it to be functional now.
Give us some minor MP from drawing cards in general and call it a day.