pokemon card sigilyph Japanese 035/086 sv11W U Mirro Monster Ball TCG — ToysOneJapan Psychic Ability Toolbox This Pokémon may have up to 4 Pokémon Tool cards attached to it Sigilyph - 123/264 (SWSH08) Common

Considering that both cards are in print and, discounting the Aftermath debacle, is from Magic's newest set, I'd lean towards selling while prices are high unless you plan on building the deck yourself

While some hyper efficient, single-target interaction like countermagic and Path to Exile is useful, you should also invest in cards like Grasp of Fate, Soul Shatter, and Convert to Slime to keep ahead on cards while putting your opponents behind on the board

We'll want to run the usual suspects like Rampant Growth, Kodama's Reach, Explosive Vegetation, and the decision of whether or not to run mana rocks will probably be a meta call

When you scratch your head and think "How the heck am I going to win with Squirrels?!?", think Overrun, Centaur Chieftain, or even Lure