This has a counterpart in terms of appearance, "Gigastone Omega".
The maximum ATK and DEF this card can reach with its effect is 41300. This is achievable with a 60 card Deck filled with Rock-Type monsters including this card, and all other monsters being banished from the Graveyard for this card's Summon.
If one has 15 Extra Deck Rock-Type monsters in the graveyard during its summon, the attack may be further raised to 51,800.