M13 Choosing a Mythic Dragon

I can't thank this community enough for the amazing discussion and awesome ideas you all contributed to in the last week. There were a ton of great dragon ideas, many of which are better saved for an expert expansion where they can truly shine in all their zany hotness. I've mocked up the ones that I think are the best fit not just for a core set, but M13 in particular. I want to share them with you so that you can vote which ones you like the best and the least and so we can consider any final edits to them. Do not take the absence of a design you proposed or liked as judgment against that design. There were a couple that are arguably better in the abstract than the following, but that just weren't appropriate for Magic 2013.

Dragon Mage fills the role of an exciting reprint. For those who haven't played with it, it's better than it looks because its seemingly symmetrical effect isn't. As the red player, you're much more likely to have emptied your hand by the time it triggers and you're also more likely to draw a grip of cheap burn to finish your opponent off with. The disadvantage of this reprint is that it's not the most resonant dragon trope and that it's not a new card.

This is my favorite of the dragon tropes proposed. Thanks, George Gone. I was amazed how hard it was to find an image for it. I really wanted to see a dragon flying off with a princess in his clutches. Anyhow, the biggest strike against Princess Snatcher is that the ability is distinctly out of red's color pie.

This guy is a riff off of Princess Snatcher and an attempt to make a more red people eater. In this iteration, it's your opponent's choice whether they want to sacrifice someone to sate this man-eating monster. Very few creatures will be able to block it and kill it in combat, so your opponent will have to think about how much damage he wants to take versus preventing it and making your threat even bigger. My big concern is that this feels like a downside mechanic and Timmy may not like that.

Transitioning from eating people to just ravaging your castle, the surrounding farms and all the hapless soldiers and serfs along the way, we have Castle Razer. We've upgraded Shivan Dragon's firebreathing for a one-sided wrath effect, so this should be pretty amazing to swing with, yet the card still seems to fall somewhat flat as a mythic. It's strong, and it's flavorful, but I don't know, is it exciting?

EDIT:
Rampart Breaker is HavelockV's upgrade to Castle Razer. I prefer this version. It's not as strong in play, but it reads much better.

This is Duncan's design, championed by Pasteur. I'm not a fan because the "tapped mountain" ability has zero flavor for me, but there's enough love for this going around that it's certainly a contender. I'd prefer Tigt's "R: +2/+0" or "Whenever you cast a spell, ~ gets +1/+0 for R spent" depending on your goal.

P for Pizza inspired this simple design and Fading Shadows of a Memory Beloved had the perfect name for it. This focuses on the trope of dragons as being essentially indestructible. Rather than write "except against Knights" or "except against equipment named Dragon Slayer" let's give it the full impact of being indestructible and leave the work of getting around that to the dragon slayer cards themselves. As strong as indestructibility is, it's not as oppressive as protection since he can at least be answered by spells.

EDIT:
Adding the ever-Forking version of Mentor of Fire at Greg's request. I agree it's pretty exciting.

Which of these do you love and which do you hate? Are any tweaks called for?