Swain ult idea

General's Battlefield:

• Swain sends out Beatrice to a target location, where she creates a moderate area and calls a few ravens. Swain transforms into a huge raven-like creature and sends the lesser ravens out to enemy champions, dealing 150/200/250 (+60%ap) magic damage to each enemy champion over 5 seconds and heals for 55/65/75% of the damage dealt. The effect ends early if Swain leaves the area. Cooldown 140/120/100 seconds

It fits his General/Warlock theme while keeping some aspects of his old ultimate but with more counterplay.