Number 81: Superdreadnought Rail Cannon Super Dora [OP10-EN019] Common 2011 Collectors Tins You can only use this

You can only use this effect of "Valerifawn

Set: Premium Gold Card type: Synchro/Effect Monster Rarity: Gold Secret Rare Attack: 2100 Defense: 3000 1 Tuner + 1 or more non-Tuner monsters After resolving a Field Spell Card that was activated during your turn: Draw 1 card

inflict damage to your opponent equal to the difference between its original ATK and current ATK

Set: Speed Duel: Destiny Masters Card type: Effect Monster Rarity: Common Attack: 1200 Defense: 1500 If this card you control is sent to your GY: Add 1 "Gravekeeper's" monster with 1500 or less DEF from your Deck to your hand

Set: 2016 Mega-Tins Mega Pack Card type: Effect Monster Rarity: Common Attack: 200 Defense: 200 If this card is in your hand: You can Fusion Summon 1 "D/D/D" Fusion Monster from your Extra Deck

Number 81: Superdreadnought Rail Cannon Super Dora [OP10-EN019] Common 2011 Collectors Tins You can only use thisSet: OTS Tournament Pack 10 Card type: Xyz Effect Monster Rarity: Common Attack: 3200 Defense: 4000 2 Level 10 monsters Once per turn (Quick Effect): You can detach 1 material from this card, then target 1 face up monster on the field; that target is unaffected by card effects, except its own, until the end of this turn.