I agree on the tentacle summon.
But maybe your just new to this idea.
So wouldnt it be better to summon like
a special Reaper called a Bloodwood Tree.
It dosnt cast like normal reapers but instead
Casts Curse on everything except you and friends
and if this idea dosnt work. We could have
the Bloodwood Tree act like a normal Reaper
but have it spawn those cute little Shadow
Elementals around them that you find in
Khaldun. Spawn enough to make a small decoy while you
delay an army of whatever. And best case scenario.
Youve got the Reaper and the Little guys helping.