I know I said I was leaving, etc, and I am, but I did post this deck after that statement and I don't want to post a deck that's generating a conversation and orphan it. This WILL likely be my last post though (but I may lurk from time to time)
After consideration, I think
Gather Courage is better than
Titanic Growth in this deck. The deck's main vulnerabilities are to bounce,
Tribute to Hunger,
Reprisal and
Shock.
Now while we can't do much against bounce, and we have limited Reprisal defence (other than trying to cap at 3/3), and limited Tribute defence (other than trying to keep a secondary sac creature alive) we can defend against 2 for 1s with Shock with Courage, and still maintain aggro due to the Convoke element. Very few people see it coming if you're tapped out, and the extra 2 P/T from Titanic Growth is mitigated by this extra speed.
As a result, due to playtesting and the lowered costs, I've also gone down to 20 lands, for a 20/20/20 creature/spell/land split. I've gone for
Fling for the extra spell, though I understand if others chose differently. I'd never want to see more than one as it's a finisher, and it's worked well so far.
Updated the deck with these changes. I can't see myself making any further changes as there's virtually no other cards at a similar cost or utility to even consider. You could arguably risk
Elvish Pioneers for a little more speed, but that's about it, and it's not a change i'd make, and the Convoke of Gather Courage is working so well, I wouldn't consider any Red creatures other than the Hoplite either.