"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 "Ojamatch" and "Ojama Pajama", 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 "Ojamatch".
"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 World Championship 2006 and in World Championship 2007, "Armed Dragon LV10" appears in World Championship 2007 and in Yu-Gi-Oh! Duel Arena, and "Dark Armed Dragon" appears in World Championship 2009.
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. "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.