Monsters like "Cheermole" and "Sword Fish" can manipulate ATK and DEF permanently in large increments and continue to do so if they can remain on the field while others like "Fire Mufflerlion" and "Spikeagle" grant bonuses for attacking by providing a second attack for one of your monsters and piercing damage respectively
However, to show that care, Holt used his newer experience with the MMO to include elements from the games earlier expansions, like Heavensward or A Realm Reborn
Those are also the same cards you want with Retriever Phoenix so you dont have to cast the card to get it into your graveyard
The art here actually reminds me of the album cover for Cattle Decapitations' "To Serve Man" album which sorta depicts the same thing
If the double-faced card is put into a hidden zone (your hand or library), use the substitute card again
Furthermore, its attack does 120 damage, meaning that it can easily deal with single-prize Pokmon before they evolve into more frustrating threats, making it an intriguing offensive threat with amazing defensive capabilities