Thriving Rats: [Category 2] ETB yield is 2 Energy for 2 mana, then you can spend 2 Energy on a counter
Pokemon TCG Decks have to have 60 cards, no more, no less
Sure a ton of things have ways to bypass this ability now a days (and especially with ex's inviting more non-rulebox stage 1's and 2's into decks), but it's nice to have
Aetherflux Reservoir is the missing piece to any number of infinite lifegain combos, offering an out to end the game instead of just setting yourself to 1,000,000 life and hoping your opponents concede
Well, if PokeBeach is to be believed, that sale actually did happen, and the guy who bought it scored an even better one after that
If Aleister the Invoker is already on the board, Invoked Raidjin can flip it face-down, so the user can flip it up and search for an Invocation