Negate the activated effects of monsters your opponent controls, whose Levels/Ranks/Link Ratings are less than or equal to the number of Normal Monsters in your field and GY
Four mana for a haste anthem is already decent - but add cost reduction and threat duplication
Greninja ( Genetic Apex ) is notably a port of the Greninja card from the TCG's XY expansion, with the same attack and Ability except with rescaled numbers and effects (Mist Slash has its effect removed due to Resistance not being a thing, and Water Shuriken no longer requires a discard due to Energy cards being replaced by the Energy Zone)
It even says Illustrator on it instead of Trainer, which alone makes collectors freak out like characters unlocking a crazy power-up
The nine different Energy card types are Fairy, Grass, Fire, Water, Lightning, Psychic, Fighting, Darkness, and Metal