Superheavy Samurai Soulgaia Booster

You can target 1 "Superheavy Samurai" monster you control; equip this card from your hand or field to that target. It is treated as a Tuner. If you have no Spells/Traps in your GY while this card is equipped to a monster by its own effect: You can Special Summon this card. You can only use this effect of "Superheavy Samurai Soulgaia Booster" once per turn.

Machine EARTH Effect Monster 4 effect