Its not a gold mine, but its always nice to get extra rewards along the way
Its a mechanic that turns on once a card enables it and can be taken by dealing combat damage to the player with initiative, much like monarch
In Modern, it provides defense against aggro decks and Ruby Storm, but those have been around for ages
However, these strategies are some of the most consistent decks of the format because they have access to one of the best big basic Pokmon in the game
16 Greninja ex (198/167) Ultra Rare Fighting-type Greninja ex is a powerful card in play, especially the Terastallized form of it, so many players have crafted strategies and decks around this card
Charizards next attack, Explosive Vortex, deals an even more staggering 330 damage but requires you to discard three Fire Energy from it to use it