Played this game for a few hours yesterday evening and it's pretty fun. Scarlet Witch is pretty awesome, very mobile with some powerful spells. I just hit level 12 I think and never ever came close to dying, she just wrecks everything with her AOE and can teleport around the map pretty easily to avoid damage. Very fun.
I was looking at team up heroes and they cost like 400 - 800 eternity splinters. Do I need to get a team up hero? I only have 400 splinters and from what I understand you should save them to buy new heroes.
Yeah, it'd probably be better to use ES on heroes at first if you're new. Leveling other heroes is easy during XP bonus events and will allow you to unlock some Synergies which you can use on all your heroes.
What's your in-game name, and what Team-Up do you think you'd want to get first?