I hate em! Haha just kidding, these are awesome and they feel very much like necrons, I especially like the living metal rules. But I see you have used "tapped" instead of "exhausted". Ah magic the gathering... Once it's in the system it's hard to get it out...
Any ideas for:
scarab swarms
Tomb spiders
Wraiths?
Hahaha your totally right! I will update that text tonight. I also should include tapped to the other Living Metal Necron Warriors as I feel otherwise it would just be like changing 3 drops into 1 drops and the latter still seem to dominate the game. Being tapped imho is mandatory as otherwise it would add up to some insane lategame options. For example spending 3-5 Resources to gain back 3-5 Living Metal entities. A bit to much even with AoE being present at some decks allready...
As for Swarms and the others, I do have some sketches lying around. Will probably post them tonight also.
Still working on a Swarm representation but I think it's likely that it will be comparable to Snotling Attack/Promise of Glory token generator. Probably something along the lines of Swarm Event *name* Cost 2, Shield 1, put 2 Scarab Swarm Tokens into play (1/1's) copy this effect for each Swarm Event *name* in your discard pile.
It would still look at the discard pile/graveyard for it's resources somewhat and would also syng with the otherwise mediocre Support card of Imotehk.
Also Flayers will be Ambush units obviously, without command.