Meditate x3 (sérénité d'âme) is already good. Dragon Ancestry x2 (Héritage des dragons) is even better (should have been x3 indeed).
If we weren't several years since game release, I'd say this is an overlook. Now, it's perhaps working as per design.
Frankly, how do you deal with these guys in Multiplayer? Directing all the attacks on the last guy, once you realize what's up?