Rabby's Free Gas feature is great for newcomers, but horrible for airdrop hunters like me who have gas on 40+ blockchains.
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But I finally found the best route to get the Free Gas badge on DeBank:

The key idea of this strategy is to:
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❍ Bridge over a small amount of gas tokens to a network with cheap gas
❍ Swap that token to another one via a DEX to trigger the Free Gas feature
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If you have multiple wallets, it’s best not to use the same route.
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So here are other networks I bridge to with gas.zip using the same strategy:
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❍ Harmony One
Swap ONE on swap.harmony.one/#/?chain=harmony
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❍ Beam
Swap BEAM on swap.onbeam.com/#/swap