Evilswarm Exciton Knight [LVAL-EN056] Secret Rare DP05 Scholars say that arbiters exist

Scholars say that arbiters exist on every world

If this card is Special Summoned by the effect of a "SPYRAL" card: You can target 1 Spell/Trap Card your opponent controls

You can only use this effect of "Satellarknight Unukalhai" once per turn

• Each player loses 1 life and draws a card

tap all lands that player controls and untap all lands you control

Evilswarm Exciton Knight [LVAL-EN056] Secret Rare DP05 Scholars say that arbiters existSet: Legacy of the Valiant Card type: Xyz Effect Monster Rarity: Secret Rare Attack: 1900 Defense: 0 2 Level 4 monsters Once per chain, during your Main Phase or your opponent's Battle Phase, if your opponent has more total cards in their hand and their side of the field than you do: You can detach 1 Xyz Material from this card; destroy all other cards on the field, also your opponent takes no further damage this turn (this is a Quick Effect).