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One of those was Rebel Clash, the second expansion for the series that gave fans many of the cards they had been waiting for of key Pokmon from the Galar region and many VMAX Pokmon to help bolster players' decks

Amethyst has some interesting choices this set

That alone produces ridiculous consistency and ability to always use all of your mana

3 Sky Striker Mecha Widow Anchor 2 Sky Striker Mecha Shark Cannon 1 Sky Striker Mecha Hornet Drones 1 Reinforcement of the Army 3 Upstart Goblin 2 Forbidden Droplet 2 Called by the Grave 2 Infinite Impermanence 2 Sky Striker Ace Zeke 3 Sky Striker Ace Kagari 2 Sky Striker Ace Shizuku 1 Sky Striker Ace Hayate 1 Sky Striker Ace Kaina 1 Prototype Sky Striker Ace Amatsu 1 Sky Striker Ace Azalea 1 Sky Striker Ace Camellia 1 Combined Maneuver Engage Zero

but then again I've never devoted a sideboard slot to the card