@Lord Szall@Satoshi KyouA monster special summoned from the extra deck goes to the extra monster zone. This includes pendulum monsters. I wasn't aware of this when I first wrote the rule in, but some new info came out that cleared it up.
What this means though is that you just have to treat your ace monster as more of an ace since most of the time you'll only have him. I'd suggest thinking of custom cards that support Lock Rage Dragon specifically while it's in the Extra Monster Zone.
Another thing that's bothering me that I didn't notice in your character sheet when I first looked at it... Fierce Anger Dragon is listed as a fire attribute, but its picture says "Dark".
We also still don't know whether or not Ojama Country changes a Link Monster's attack to its Link number.