Raging Kavu [Invasion] Human Shaman Werewolf Monster Text : Unhandled exception

Monster Text : Unhandled exception at 0x1i-666 in qliphort

Set: The New Challengers Card type: Xyz/Effect Monster Rarity: Ghost Rare Attack: 2500 Defense: 2000 2 Level 4 monsters You can detach 2 Xyz Materials from this card

Set: Legendary Collection Type: Fighting Rarity: Rare Retreat cost: Colorless

You can only use this effect of "Overburst Dragon" once per turn

immediately after this effects resolves

Raging Kavu [Invasion] Human Shaman Werewolf Monster Text : Unhandled exceptionSet: Invasion Type: Creature Kavu Rarity: Rare Cost: {1}{R}{G} Flash Haste It took Yavimaya a thousand years to breed them, but it took only seconds for them to prove their worth.