Guardragon Agarpain

2 Dragon monsters You cannot Special Summon monsters, except Dragon monsters. During your Main Phase: You can Special Summon 1 Dragon monster from your Extra Deck, to an Extra Monster Zone or Main Monster Zone you can Summon to, that 2 or more Link Monsters point to. You can only use this effect of "Guardragon Agarpain" once per turn. You can only Special Summon "Guardragon Agarpain(s)" once per turn.