Kuja, Mage Manufacturer Mostly just a 4/5 for tough colors, though I suppose if you have the nut wizard deck, Inalla, Archmage Ritualist could kill pretty fast
Dragons Rage Channelers qualities are of a more subtle nature allowing one to sift through the deck and even dump cards like Lava Dart into the graveyard, therefore it is not surprising that the card is being tested in Mono Red Phoenix shells and the like
We do have sacrifices and creatures that trade in combat, so it definitely can happen, but theres a chance Noctis, Prince of Lucis isnt very effective, and at three colors it takes a lot to put Noctis into a deck in the first place
Alexi, Zephyr Mage (Masques/Nemesis/Prophecy) Here's the difference between Odyssey Block and Masques Block: There weren't a lot of spells that could kill a three toughness creature in Masques Block, where there are quite a few in Odyssey Block