Spellweaver

You have learned to steady your mind to concentrate on two spells at once.

• If you attempt to cast a spell that requires concentration while already concentrating on an existing spell, you can maintain concentration on both spells simultaneously.
• At the start of your subsequent turns, you must spend your bonus action to maintain concentration. Make a concentration check (DC = 10 + the combined levels of both spells.) On a failure you lose concentration concentration on both spells. You can drop concentration on one of your spells at the start of your turn as a free action to avoid this saving throw.
• If you receive damage whilst concentrating on two spells at once, make a concentration check. DC = 10 + the combined levels of both spells or half the damage received (whichever is more). On a failure you lose concentration on both spells.