If an ult and a plus or minus generate different emblems/tokens its fine (particularly if the smaller ones are very generic), but having different tokens on different or the same plus or minus can become annoying and confusing
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That said, there are some clear synergies that this sort of design enables that seem worth pointing out
This isnt a problem in and of itself (land destruction is miserable when widespread or powerful), but it means where Energy proves powerful, there are few safety valves to stop it
Its asking too much of a financial commitment from its players for them to stay playing at a decent level, and its asking them to reinvest in it with each new set
The idea here is to play a bunch of fast mana and low-cost spells to quickly empty your hand before your opponents, then Timetwister, refilling your hand while disrupting your opponents