According to the translation offered by Bulbapedia, the ability "mortal shuriken" allows Greninja's controller to discard a water energy from their hand, once per turn, to deal sixty damage to any of their opponent's Pokmon
This means that Jolteon VMAX can attack with Max Thunder Rumble for a single Lightning Energy
The suspend cost is beneficial, as when it comes back to your turn, you can choose to deal the damage directly to the opponent, or to a creature that your opponent may have played
But Kaervek's Torch was the first spell to pack what would become the formula for the unnamed, lets call it proto-ward mechanic for years to follow: Spells that target it cost more to cast. This effect was introduced on a permanent in Planechase 2012 with Elderwood Scion, and the costing--more-to-cast formula generally appeared on one card per set (with plenty of exceptions) starting with Dragons of Tarkir s Icefall Regent
(3) If this card is destroyed by your opponent: You can target 1 Dragon monster in your GY
Even though countless TCGs have been available over the years, very few have ever challenged the domination of the big three (Magic: The Gathering, Pokemon and Yu-Gi-Oh) in a serious way, but in 2023 Disney Lorcana truly shook up the scene and drew the attention of new legions of players and collectors
