You can destroy your own Warm Worm to mill your opponent's deck by using the effects of Assault on GHQ, Fire King Island or Fire King Avatar Yaksha. Once Warm Worm is destroyed by your own card effect, use Puzzle Reborn to bring it back to your field. Repeat the process to mill more cards.
If your monster get destroyed by OTC, you can summon the destroyed monster back. If you use OTC on your own monster, it won't work as the OTC activation does not destroyed your own monster.
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