Manta Ray is a Legends of Idleon item: used in 3 recipes, upgrades 1 bonus. Watch out for that stinger! It's called a 'stinger', but it will leave more of a deathy feeling than a stinging one.

Manta Ray | Idleon Toolbox

Watch out for that stinger! It's called a 'stinger', but it will leave more of a deathy feeling than a stinging one.

Manta_Ray

+{%_Basic_Attack_Speed._Just_like_all_other_Basic_Attack_Speed_bonuses,_this_boosts_AFK_kills/hr_if_you_do_enough_dmg!