Well, just wait at your island, be lucky so no one attack you and hope for the last one to fall into the voidI challenge you to complete the challenge I completed in this video here:
Rules:
No hitting opponents
No armour
No breaking opponents blocks except with a fist. (excludes obsidian)
If you have the rank OP mode only
No iron, gold or diamonds
not exactly unlikely on cubecraft. i needed content though so couldnt do thatWell, just wait at your island, be lucky so no one attack you and hope for the last one to fall into the void