So we want Dragons that not only attack, but also draw us cards, remove threats and pesky blockers, or even ramp us
Talking of Strength-buffing, Ruby Chromicon fits into decent range of decks as a simple tool
"They were all laughing at you after you left, you know
With this Magic: The Gathering Starter Commander Deck Draconic Destruction (Red-Green), battle opponents with powerful creatures and spells
Gandalf the White will probably see the most play in Tales of Middle-earth casual decks for that very reason, and more limited play elsewhere
(Technically, the Kaladesh booster pack says the ratio is 1:2,160 cards.) This is slightly more often than opening a premium mythic rare