DOT settles on Polkadot's relay chain in under a minute with fees of a few cents. Like LINK and HBAR it's a hold-and-play coin: most players fund with what's already in the wallet rather than buying DOT specifically to gamble. Duel's terms don't change by coin — $5 minimums, instant payout processing, no fees, no routine KYC — so the choice is purely about what you hold.