Clockwork Hydra [Time Spiral] Devil Horror all monsters on the field

all monsters on the field whose original Types are Machine or Rock

Set: Legendary Duelists: Season 1 Card type: Normal Trap Rarity: Common Send all cards in your Spell & Trap Card Zone to the GY

) This card cannot be destroyed by battle

You can only use 1 "Witchcrafter Unveiling" effect per turn

and secrets

Clockwork Hydra [Time Spiral] Devil Horror all monsters on the fieldSet: Time Spiral Type: Artifact Creature Hydra Rarity: Uncommon Cost: {5} Clockwork Hydra enters the battlefield with four +1 +1 counters on it. Whenever Clockwork Hydra attacks or blocks, remove a +1 +1 counter from it. If you do, Clockwork Hydra deals 1 damage to any target. {T}: Put a +1 +1 counter on Clockwork Hydra.