Using it efficiently requires some strategy since they can easily fling the enemy away from the other's MP range. You want to summon the first one near where the second one will fling the target to. The latest summon you put out will always go right after you (a.k.a. the second summoned Kamarachnid). Use this to influence where you want the enemy to go.
I didn't really demonstrate that much in the stream at the time. A bit of an Osamodas summoner noob to say the least!
Thx for your hard work , great video
Not a Fan of pure damage creature but it's still better than nothing.