Professor Elm's Training Method (89/115)) (B-L-S - Hiroki Yano) [World Championships 2006] SH10 change it to Defense Position

change it to Defense Position

You can only use each effect of "Magicians' Souls" once per turn

Set: OTS Tournament Pack 3 Card type: Xyz/Effect Monster Rarity: Ultimate Rare Attack: 1800 Defense: 2800 2 Level 3 monsters Cannot attack unless it has Xyz Material

but while this effect is applied

Set: Phantom Darkness Card type: Effect Monster Rarity: Secret Rare Attack: 2800 Defense: 2300 If there are 4 or more DARK monsters with different names in your Graveyard

Professor Elm's Training Method (89/115)) (B-L-S - Hiroki Yano) [World Championships 2006] SH10 change it to Defense PositionSet: World Championships 2006 Type: Supporter Rarity: Uncommon