The damage and life gain get tied together, like with Lightning Helix
The classic is Dark Depths and Thespian's Stage, but theres likely better options these days
Because these Pokmon go directly to your hand instead of directly on a Pokmon in play from your deck, this means that their Abilities can then be used upon evolving one of your Pokmon in play
Like a lot of folks, I was concerned a broken Planeswalker or two would have made it into the War of the Spark file, but the thirty-six walkers of that set, even Teferi, all paled in comparison to the boogeyman from autumns Eldraine: Oko, Thief of Crowns
Creatures like Gelectrode, Walking Ballista, and even Mayhem Devil instantly become deadly when given deathtouch
its an absolute house