Also, even though from the start I had a feeling Muster for Battle would be strong. (Most cards that combine two cards into one for a decent price are, see Imp-losion). But I didn't really know until I started playing with my token Paladin deck just how powerful it can be. I mean, it's helped even more with TGT's Warhorse Trainer, but even without it's fantastic.
Also, just gonna say: I think Warhorse Trainer is pretty underrated. While people may expect Quartermaster as clear the recruits when you play it in the mid-game, most people can't if you Coin into Muster on T2. You then follow it it up with a Warhourse Trainer and one recruit plus your Light's Justice can kill most things they'd have played.
I didn't find this bug, but I also never coined on T1. Seemed pointless, considering the ramp is so fast.