Forced restrictive combos are not valuable. Make sure each cog has three reasons NOT to be used in this combo.
That is a good point.
What has just been posted above me sounds like a pretty good idea, although the final 'golem' should have higher attack.
As a 10-piece card, it should be at least stronger than an everyday dragon that is 12 of an element quarta. Also, even a 60 card deck could only create a maximum of 3 or 4 due to the number of towers, SN, and stall necessary, and it should be able to kill the opponent in about 3 or 4 turns after some are created.
Since the golem, I think, is different enough from the Rube Golberg machine then I might try to make it myself...though I've yet to try making a card. If someone wanted to steal the idea and ask me for some revised part ideas/etc i'd be up for it. An additional alteration could be made: Golem could be an other type creature with low cost and stats (slightly weaker than horned frog with a cost of 2 any quanta, perhaps) with the pieces being permanents that boost golems stats, and have an additional buff by there elements (similar to shards, perhaps). It would benefit some as you coul have multiple golems getting buffed this way. I like this idea...hrmm..