pokemon tcg what cards are legal E stamp tournament legal? Limits - What You Can

This is an elite-tier inclusion due to its scarcity within the Team Up set and its massive influence on the Alt Art trend that followed

you cannot Special Summon, except DARK monsters, for the rest of this turn, also send 1 DARK Machine monster from your Deck to the GY, except "Orcust Knightmare", and if you do, the targeted monster gains ATK equal to the Level of the monster sent to the GY x 100, until the end of this turn

It's very powerful in Commander since so many things care about ETB stuff from the heavily played Mulldrifter and Eternal Witness with their ETB triggers to win cons like Impact Tremors

Question for you: What do you think of the Seismitoad