If you have a full backrow of spells and traps, thats a 2500 attack boost, making this guy as powerful as a Blue Eyes Ultimate Dragon
[F][C][C][C] Rolling Tackle: 90 damage
If the targeted creature has an ability that triggers when it attacks, itll be too late for it to trigger once Identity Thief has that ability
these were claimed to be the earliest known pokemon tcg cards, created years before the base set, and they supposedly came straight from the personal collection of takumi akabane, one of the original creators of the pokemon tcg
How likely am I to see these cards in the average game
Each of those three steps has its own kind of check and approval process, which takes a decent amount of time. Though Arita usually gets the name of the attacks that will be on the card, he doesnt usually get a description of the move