The rest of the cards in the green staples list aren't necessarily bound together by a common thread, but they are still key to the success in more than a few decks
Most dragons are in the 3- to 6-mana range with the discount from The Ur-Dragon, so you dont need much below that
Deck Filters Doc Samson, Super Psychiatrist 20%inclusion 19%synergy 4 decks 20 decks Hulk, Brutal Brawler 17%inclusion 16%synergy 3 decks 18 decks Shang-Chi, Martial Mentor 11%inclusion 10%synergy 2 decks 18 decks Punishing Punch 11%inclusion 10%synergy 2 decks 19 decks Earth's Mightiest Heroes 11%inclusion 10%synergy 2 decks 19 decks High Synergy Cards Hardened Scales 70%inclusion 55%synergy 124 decks 178 decks Inspiring Call 66%inclusion 53%synergy 118 decks 178 decks Spider-Man, Brooklyn Visionary 49%inclusion 49%synergy 88 decks 178 decks Forgotten Ancient 59%inclusion 48%synergy 105 decks 178 decks Kami of Whispered Hopes 54%inclusion 47%synergy 97 decks 178 decks Venom Blast 46%inclusion 46%synergy 82 decks 178 decks Kapow
Think about it, with all the three-mana 4/2's nowadays, this creature reduces their cost to just 1 mana and enables them to attack as 5/3 tramplers
[[Lightning, Army of One]] brings First Strike, Trample, and Lifelink
