"Armed Dragon" (アームド・ドラゴン, Āmudo Doragon) is an archetype of monsters, used by Chazz Princeton, that were introduced in Soul of the Duelist. They are related to the "A-to-Z" series through "Armed Dragon Catapult Cannon" and the "Ojama" archetype through "Ojamatching" and "Ojamaparty", a reference to Chazz having played the three alongside each other in the Yu-Gi-Oh! GX anime.
The majority of the archetype's members are WIND Dragon "LV" monsters. Originally a series, the archetype did not have support until "Duelist Pack: Legend Duelist 2" with the aforementioned "Ojamatching".
"Hardened Armed Dragon" is not part of the archetype due to its Japanese name, 「ハードアームドラゴン」, not containing 「アームド・ドラゴン」.
"Armed Dragon LV7" appears as a character in Yu-Gi-Oh! Ultimate Masters: World Championship 2006 and in Yu-Gi-Oh! World Championship 2007, "Armed Dragon LV10" appears in 2007 and in Yu-Gi-Oh! Duel Arena, and "Dark Armed Dragon" appears in Yu-Gi-Oh! 5D's World Championship 2009: Stardust Accelerator.
The original "Armed Dragon" series focused on sending cards from the hand to the Graveyard to destroy monsters on the field. Depending on the ATK of the monster sent, certain monsters could be destroyed while others were not. This is why cards that decrease your opponent's monsters attack, such as "Shrink" and "Burden of the Mighty" can be helpful. "Armed Dragon LV10", being the strongest, simply destroys all face-up monsters regardless of their ATK and any card could be sent from the hand to the Graveyard, rather than only monsters, as was the case with the lesser forms. This series is one of two "LV" Dragon series (the other being the "Horus the Black Flame Dragon" archetype).
"Dark Armed Dragon" is the Dark counterpart of "Armed Dragon LV7", capable of destroying multiple cards simply by banishing DARK monsters from the Graveyard. In the artwork of "Dracocension" it is shown that "Dark Armed Dragon" was transformed into "Metaphys Armed Dragon" by it, which is currently the only Wyrm member of the Armed Dragon archetype.