Tsareena ex Water HP310 Stage 2 Evolves from Steenee Tera: As long as this Pokmon is on your Bench, prevent all damage done to this Pokmon by attacks (both yours and your opponents)
If you target two cards and one of the targeted cards becomes illegal, youll still return the other one, discard a card, and exile Shreds of Sanity
I think the secret cherry on top is the flashback, as you get to re-do the experiment again, knowing what everybody had done before
Oh, what's Heron's Grace Champion
It comes with 340 HP again (by now you might be thinking this is the norm, but remember, that much health, by itself, is exceptional) and has two very efficient attacks that can deal a lot of damage
If its not going fast enough, one turn cycle gives you enough to use her Proliferate ability too