User blog comment:SaiScott95/SaiScott95's Armorknight Deck (Danger World)/@comment-203.219.214.245-20140130073039/@comment-4292163-20140131144506

Yeah, while there is a lost opportunity cost vis a vi rushing during early game, the mid-late game opportunity cost gained from the toolbox more than balances it out. It might be too situational to be run at 4, but on average it performs too well to be run at less than 2 imo.