4 star voodoo or 4 star mordo

EmperorLDrago

I have duped r2 Mordo and r2 unduped doc voodoo. I have enough material to rank up one. So basically whome should I rank up as i am 40k player and I have only Jane foster .doc vodoo and Mordo as my 4 star mystic champ .please help me out

Unknown

This content has been removed.

EmperorLDrago

So should I focus on voodoo totaly or leave some space for Mordo for future development