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If you have a creature with two +1/+1 counters on it and you double the number of counters with Vorel of the Hull Clade, you basically put two +1/+1 counters on the creature, which matters for cards like Simic Ascendancy

So to my surprise, Paradox Engine isnt banned even though

The other reason is much more political: people see the Reserved List as a way rich traders maintain power over the community

Combine Biotransference with the new legendary creature Trazyn the Infinite, and suddenly Trazyn gains every activated ability on your creatures as well as your artifacts

You have Seedborn Muse and Prophet of Kruphix to make things pretty silly

Personally, I'd go for Ephemerate to blink the Micromancer and use it again for more value