The backup ability makes this a strong card as it allows this to function as enabler and payoff, making it a great choice for a counters commander
Like Dromoka, Wrexial also has a Secret Lair version that takes a lot of artistic liberty with the original artists depiction, as seen here by Alexandre Chaudret from three years ago
I honestly dont expect a lot of players actually play large tournaments with it, but the reality is that if Zygarde gets powered up, it has the potential of ending the game in one turn

Ancient Hydra Apex Devastator Apocalypse Hydra Balduvian Hydra Benevolent Hydra Bioessence Hydra Briar Hydra Bristling Hydra Capricopian Clockwork Hydra Domesticated Hydra Feral Hydra Gargos, Vicious Watcher Genesis Hydra Goldvein Hydra Grakmaw, Skyclave Ravager Gyrus, Waker of Corpses Heroes' Bane Honored Hydra Hooded Hydra Hungering Hydra Hydra Broodmaster Hydra Omnivore Hydradoodle Hydroid Krasis Ironscale Hydra Kalonian Hydra Khalni Hydra Lifeblood Hydra Managorger Hydra Mistcutter Hydra Molten Hydra Mossborn Hydra Multi-Headed Nessian Wilds Ravager Neverwinter Hydra Nyxborn Hydra Oran-Rief Hydra Phyrexian Hydra Phytohydra Polukranos Reborn Polukranos, Engine of Ruin Polukranos, Unchained Polukranos, World Eater Primordial Hydra Progenitus Protean Hydra Rampaging Aetherhood Rampant Rejuvenator Ramunap Hydra Rock Hydra Savageborn Hydra Scourge of Skola Vale Shivan Devastator Spitting Hydra Sprouting Phytohydra Steelbane Hydra Steelbane Hydra Stumpsquall Hydra The Goose Mother Thunderous Snapper Ulasht, the Hate Seed Ulvenwald Hydra Vastwood Hydra Voracious Hydra Voracious Hydra Warden of the Grove Whiptongue Hydra Wildwood Scourge Wren's Run Hydra Zaxara, the Exemplary

Whether you are creating cube cards, casual play proxies, tournament accessories, or fully custom fantasy card sets, selecting the right material helps improve both gameplay consistency and visual presentation