I honestly think these are overpowered. With 10 armor at full upgrades, fast attack speed, obscenely annoying spell immunity, orb of annihiliation, and devour magic. These damn units made a game that should have taken about 15 minutes last over about 45 minutes because my 4v4 strategy (AT, yes) pulls out casters behind our already tier 1. Thing is, they got these before they saw our casters. So basically, half of each of our armies were useless, the only thing that was useful was the priests healing, and stasis traps pretty much. I was forced to continue building Grunts the entire game before we sacrificed my base while my ally decided to wreck the other bases. Honestly, these units need nerfing, and fast.