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Original Post — Direct link
15 days ago - /u/JagexLight - Direct link

Could be a typo. Or could be foreshadowing a brand new type of raid boss replacing the duel arena that hits you through triangular 'pizza' shaped ground targets, forcing you to quickly evade its attacks in order to survive...

...Nah I'm kidding it's just a typo lol I'll get that fixed. Thanks for pointing it out!