You need both Grass and Psychic Energy to make it work, while the Move discards two Energy each time it attacks
Both modes are over priced by a colourless if done on their own but effectively upgrading your Unsummon to a Repulse when you fuse the card makes it nicely on curve for cost to effect
Few One Piece starter decks teach you so clearly how to manage risk and still come out ahead
Thassa, Deep-Dwelling A source of blink thats both difficult to interact with and that can start to turn the tide in grindy matchups with the expensive tap down ability, Thassa, Deep-Dwelling is a possible commander, but it really occupies that niche of a must-play card in any blink deck you build in Commander
Zen Takahashi Stoneforge Mystic is one of my absolute favourite Magic cards
A huge synergy for Mega Venusaur ex is already patently obvious, too: the new Meganium card releasing in the Mega Evolution set doubles the value of all basic grass energies, making it much easier to launch this attack