Genex Ally Volcannon [DT04-EN014] Common Code of the Duelist except during the Damage Step:

except during the Damage Step: You can Special Summon this card from your hand

Special Summon in Defense Position a number of "Block Tokens" (Rock-Type/EARTH/Level 4/ATK 1000/DEF 1500) equal to the number of turns this card has been face-up on your side of the field

also its effect are negated

Their effects are negated and they cannot declare an attack

You can only use this effect of "Heavy Freight Train Derricrane" once per turn

Genex Ally Volcannon [DT04-EN014] Common Code of the Duelist except during the Damage Step:Set: Duel Terminal 4 Card type: Effect Monster Rarity: Common Attack: 1700 Defense: 600 Once per turn, you can send 1 face up FIRE "Genex" monster you control to the Graveyard to select 1 face up monster your opponent controls, destroy it and inflict damage to your opponent equal to the Level of the destroyed monster x 400.