Yes, they are useful but with stronger non-EX options like Rampardos, Lucario, Sudowoodo, and Tauros, youre not going to risk using them in must-win situations like SP Emblem events
Enjoy the ease of assembly and the peace of mind knowing your collection is well-protected
These decks might win, but it takes focus and dedication to get your janky weird wincon deck over the finish line using its "win the game" card

* Booster * Box set (Vintage) * Box set (Modern) * Buy-A-Box booster pack * Challenge Deck * Challenger Deck * Carta Mundi / Printing Facility * Collector Booster * Collector Booster Sample Pack * Commander Deck * Deck Builder's Toolkit * Demo Game booster * Draft Booster * Duels Decks * Fat Pack / Bundle * Fire and Lightning Premium Series Deck * From the Vault Box Set * Gameday Promo pack * Game Night deck * Gift Edition Bundle * Global Series * Guild Kit * Intro Pack * MJ Holdings Mystery Box * Non-foil Land pack in a bundle * Planechase Deck * Preconstructed theme deck * Premium Series deck * Prerelease events * Prerelease pack * Printing facility * Research and development of WotC * Redeemed set * Secret Lair Drop Series (Foil Edition) * Secret Lair Artist Series (Foil Edition) * Set Booster * Signature Spellbook * Starter deck * Store Championship Promo Pack * Tournament Pack
Notably, your Plant Tokens can tap for mana because of Tyvar as well
You can't counter the gift itself