True Draco Apocalypse (Common)

If this card is sent from the Spell & Trap Zone to the GY: You can target 1 monster on the field; destroy it. You cannot activate the following effects of True Draco Apocalypse in the same Chain.
? You can target 1 other True Draco or True King card you control; destroy it, and if you do, the ATK/DEF of all face-up monsters your opponent controls become half their current ATK/DEF (even if this card leaves the field).
? During your opponent's Main Phase, you can: Immediately after this effect resolves, Tribute Summon 1 True Draco or True King monster face-up.
You can only use each effect of True Draco Apocalypse once per turn.