I propose that Rabadons exist in Dominion along side Wooglets, with their unique passives not stacking.
With both of them in-game, players would be able to choose between survivability and maximizing damage in a fairly clear trade-off.
Some backline mages would prefer the extra damage while more frontline mages would appreciate the survivability: and for some it would simply be a matter of preference.
© 2014 Riot Games, Inc. All rights reserved. Riot Games, League of Legends and PvP.net are trademarks, services marks, or registered trademarks of Riot Games, Inc.