Appropriately enough, Secret Tunnel has plenty of other avenues you can explore, too
it doesnt kill or exile, so your opponent cant replay their commander
Altar of the Wretched // Wretched Bonemass I love this transforming mono-Black artifact
Competitive Brawl Ajani, Nacatl Pariah // Ajani, Nacatl Avenger Lutri, the Spellchaser Nadu, Winged Wisdom Oko, Thief of Crowns Old Stickfingers Ragavan, Nimble Pilferer Rusko, Clockmaker Tajic, Legion's Valor Tamiyo, Inquisitive Student // Tamiyo, Seasoned Scholar Wrenn and Six Though Competitive Brawl shares many features with its Historic counterpart, like 25 starting life, a commander, and a 99 card deck constrained by the commander's color identity, it has a unique ban list of ten extremely powerful, oppressive commanders
Theyll still work
As the saying goes, if there are still two left they are valuable, if there's only one it is priceless