Sidisi, Regent of the Mire Sidisi has always been one to care for her own interests and well-being above all others
And yet it doesn't feel unfocused, partly because of the engine that is the Wise Mothman, which really works to tie the deck together
The Hakbal EDH precon introduced some pretty powerful ones, like Ripples of Potential and Wave Goodbye, but there are also counter aplifiers like Hardened Scales you should consider
Human tokens I think can utilize this reasonably well, even if it's not breaking any molds with design
Then you may have it become a copy of another creature you control until end of turn
There was absolutely nothing to indicate that phasing, of all things, would ever again be considered a relevant or desirable part of the game