IMC,
I applaud you for removing diamond anvils from Leticia’s Cube for this cycle - and I would recommend you continue to do this.
Diamond Anvils are not available in the game in any capacity - they can’t be farmed or bought normally. The only time they have ever shown up in the game is via Leticia’s, DLC, or timed ones from events that can’t be sold or traded.
Diamond Anvils enable people to get ridiculous weapons that disrupt the balance of the game. There is no way for you to balance content for PVP or PVE while they exist since there will be people with +21 or higher weapons walking around. Yes - you can get to +21 or higher with regular anvils but the possibility of it happening on a piece of legendary equipment that takes weeks/months to farm is slim to none.
Previously the GMs mentioned that Leticia’s cube was strictly ‘Pay to Convenience’, meaning that instead of farming, you can accelerate your character’s development by getting these items - this is fine. What isn’t fine is introducing items that don’t exist that have such gamebreaking value - this is not ‘Pay to Convenience’ but indeed ‘Pay to Win’.
I sincerely hope you have learned your lesson about these items and will stop introducing them in Leticia’s indefinitely.