Yeah, but I lost account of how many times in the past I've cast E4aE on the tank just before he pulled, making all the mobs chase me and making the tank have the trouble to reposition them. It's not that it's difficult to the tank, but it's an annoyance.
Now I cast protect/ss outside of combat, but I only use regen/E4aE/cards mid-battle, since I like to optimize their effects.