The advantage seems too minimal for constructed formats unless you build around the card
Thats one way to either further damage your opponent or slow down their Mana use
10 Overwhelming Stampede An upgrade on the classic Overrun, this boosted version grants all creatures you control trample and +X/+X where X is the greatest power among creatures you control
It makes sense in theory, though I will not be surprised if this doesn't get there since 4 damage doesn't actually guarantee killing a lot of threats, and the aggro decks you're trying to stabilize against have lots of hasty things to just immediately resume punching you
The SR-weighted average (~3,200) accounts for the 20% SA probability, with Mewtwo V SAs ~$100 value raising the average meaningfully above the 10 standard SRs
Avoid using too many Stage 1 or 2 Pokmon in your deck because evolving and playing them can slow down your game and leave you vulnerable to attacks