It could find some use but I doubt it will make anything Tier 1 worthy. Take Shard of Greed for example, it looks good on paper: a generic +1 that will trade up as a 1 for 1 if the opponent chooses to destroy it...but it's performance is much too slow and unreliable in competitive play. Future Fusion could be used in Farming decks though, which makes it a good card to have anyway.
Fun for decks like hero or gem knight. But fusion was never meta in duel links so nobody cares. can be nice for casuals but as a lv45 reward LOOOOL rly?!
the strongest fusion cards that we have right now are gem knights and v-hero trinity, which both already have a consistent way to bring out. future fusion wont be useful at all.
That sounds good, I would test Dragons once I get it though. I haven't leveled up any characters past 41, but Zane is going to be my first because I want Cyber Phoenix and Future Fusion.