This boss is pretty easy, I was able to defeat the manticore with 7 fire wyverns not even mutated just level 190 with 35 points in health and damage and also some yutyrannus for help me kill golems on the ground and boost the wyverns
Heres a tip FOR ALL THE PEOPLE SAYING YOU CAN FORCETAME IT IN THE ARENA- if u go into the bosses arena and forcetame it.... you'll be stuck there forever bc the boss gotta die in order for u to leave. :)
Bring around 6-7 or more rexs and when it lands everyone get around it and trap it. Deathworms will come and knock u back but just keep moving forward slowly so u dont get pushed out. Even when the rock golems come don't stop hitting it. Goodluck boys :)
When fighting the manticore a good strategy is bring in high level Rex's with good saddles and circle the manticore it then becomes pinned allowing you to kill it without it flying all around .... watch out for the poison it shoots at you though it will kill you off your mount like the poison wyvern ..
Ok so, the wiki says that if the manticore is not landing or is glitched, then to move all of your tames to a single point in the arena because it’s a glitch where it thinks it doesn’t have room to land. Also, if that still doesn’t work, try shooting it, it could cause an aggro to you and make it land. -Ace