The tradeoff is that you dont get a trigger for mutating like all the others, but the stats look good for a defensive creature that generates cheap advantage every turn its alive
If youve been playing Standard for the past year or so I probably dont have to introduce you to cards like Kenrith's Transformation
At the beginning of each upkeep, it returns up to two creatures with power 2 or less from your graveyard directly to the battlefield, then enhances them with +1/+1 counters
You will need to alternate between Psydrive and Psychic Sphere while adding more Energy to the mon, and I dont recommend putting them into your Active Spot until they have at least five Energy on them, so you can at least use Psybeam twice in a row and hopefully sweep through your opponents Pokemon and get ahead of them in terms of Prize Points
This would allow these massive monsters to swarm the field and trample the opponent's monsters and Life Points
However, any effect that refers to a numerical result of a die roll, including ones that exchange the results of that roll with another value or compare the results of that roll to other rolls or to a given number, ignores the rolling of the planar die