Oil Slick untargetable in MA arcs. Cannot light.
Added: http://paragonwiki.com/wiki/Known_Is..._Working_in_MA
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Added: http://paragonwiki.com/wiki/Known_Is..._Working_in_MA
Oil Slick Arrow is bugged in MA missions, producing an untargetable, blue-reticled "pet". Thus, the Oil Slick cannot be targeted with attacks that would normally light it, nor does it take incidental damage from AoE attacks that would normally light it.
Outside of the MA, Oil Slick Arrow is working as it always has, producing an orange-reticled "pet" that can be targeted and hit by AoE attacks as normal.
*Tested with a level 43 Plant/TA through an MA arc that Oil Slick Arrow worked perfectly in the day before i15. 100% failure rate inside the MA. 100% success rate outside the MA.