Anything written on a Basic Pokmon or Evolution card under the picture where attacks are found (except for a Pok-Power or Pok-Body) is considered an attack even if it does not do anything to your opponents Pokmon
You can make infinite, color-fixed mana, draw your entire deck, and make an god-sized bunny
Granted, it generates its own counters across your board, so you don't need to go too deep on the strategy
There are tons of synergies with it
Archive Trap Another card thats only really effective in smaller-deck formats like Modern or Draft, Archive Trap can make an opponent mill 13 cards for free if the opponent has searched their library
Flashback doesn't change when you can cast the spell, so a sorcery with flashback can still only be cast during your main phase