Forgotten Gem spawns every 1 hour and 38 minutes with a 1/4% chance of spawning.
Forgotten gem is not affected by the 10x event etc it will only spawn in 1 hour and 27 minutes 1/4% chance.
The Forgotten Gem is invisible so you have to hope you walk over it
Lmb (Click/Punch) - 30 Damage.
E (Barrage) - Deals 278.9 - 298.9 Damage.
R (Heavy Punch) - Deals 345.9 Damage.
Y (Auto Heal Barrage) - Heals 45 Every punch.X (Block) - Block 100% of damage. Some stands such as Megumin and Jevil can bypass the block counter.
C (Roll) - Spammable, No cooldown.
Z (Stand Jump) - Spammable, No cooldown.
G (Pose) - Just a pose