1 Tuner + 1 or more non-Tuner monsters If you control no monsters: You can target 2 Level 4 WIND monsters in your Graveyard; Special Summon them, and if you do, Special Summon this card from your Extra Deck. This Special Summon is treated as an Xyz Summon, and if this card is Special Summoned this way, it is treated as an Xyz Monster and not as a Synchro Monster, also this card's Rank becomes 4, and the Special Summoned monsters are attached to this card as Xyz Materials. This card gains the following effects based on what secondary Type this card is treated as. ● Xyz Monster: Once per turn: You can detach 2 Xyz Materials from this card, then target 1 monster your opponent controls; this turn, this card gains ATK equal to half that monster's ATK. ● Synchro Monster: During either player's turn, if your opponent activates a Spell Card or effect: Negate the activation, and if you do, banish it, then this card gains 500 ATK. You can only use this effect of "Apocalyptic Knight - Stormknight Dragon" once per turn.