His tap-to-destroy mechanic adds control elements while scaling with each creature fed to him
Namely, there are two strategies apart from discarding that can help you keep ahead of your opponent
Xenagod combines with the Gruul dragon to kill in one hit, the Dimir dragon eats Elspeth alive and massacres the increasingly-powerful token theme, and the Rakdos dragon plays well with Frontier Siege and token strategies
Obviously, Voice of Resurgence, Fleecemane Lion, and Loxodon Smiter are just great cards, though it isnt even clear if Smiter is better than Boros Reckoner (and in fact I am inclined to think its not)
If you've ever conversed with a Magic player, statements like 'she loves blue' or 'he's more of a red player' are a daily occurrence - and that's for a good reason
Ogre Chitterlord Six mana