There is no strict time for the TCG to update its banlist, and instead updates the banlist whenever it is deemed necessary
This stone is generally obtained after a certain level of progress in the adventure
Primeval Titan is the main win condition for Amulet Titan by representing a large attacker and a tutor for various lands, including the combo finisher of Valakut, the Molten Pinnacle in combination with Dryad of the Ilysian Grove
If this face-up card is destroyed and sent to the Graveyard by an opponent's card effect, Special Summon it during your next Standby Phase
After all, its better to win than lose no matter your skill level, right
If that didnt already make Giant Soldier of Stone cool in the minds of Yu-Gi-Oh players everywhere, theres also the fact that its ATK value is pretty high for a card with a level-3 rating