7* hermit yoda, 5* wampa, or more G12 gear pieces?

Im going all in on Wampa... I have him at 5* now, maxed g11 and decent mods... not arena viable with the current meta, but after he is 7* he gets alot tougher and alot more powerful (2 bayonets on his g12) Should get him to 7* by February... if you are starting from scratch, you are probably looking at April if you use all your GET... if you're cool with that, I'd say its worth it.