Mormolith

Se c'è solidarity attiva, e lo tributo, spacca i mostri con 1800 o meno d difesa? cioè conta l'attacco originale o no? (il testo nn lo specifica)

OCG Rulings

    Compare the monsters' DEFs to the Tributed EARTH monster's current ATK at the time when the monster was Tributed. This includes modifications from Equip Cards, etc.[2]

E nei tips:
While there may not be many all Rock decks, Solidarity is one of the best ATK boosting cards for use with this card's effect since there are not many level 4 or lower monsters with 1800 or more DEF, and many higher leveled monsters cannot stand up to this kind of power either. Just be careful with your own monsters as they can just as easily be wiped out too.