Gluttony!

The flowing darkness devoured Maurelion's War Sword. 

[Demon Sword Ubist has consumed Maurelion's War Sword.]

[It is an S-rank item.]

[Entering Gluttony mode.]

[For 25 minutes, the demon sword and your character's abilities are tripled.]

[You may use two of the consumed item's abilities.]

[Joy of Battle and Maurelion Warrior have been chosen.]

[Joy of Battle]

The longer the battle lasts, the greater your strength and speed become. Also, the power of your skills and/or magic will gradually increase. Once the battle is over, however, you will feel the long-term effects of using the skill. 

[Maurelion Warrior]

HP, MP, and Stamina are doubled for 10 minutes. Combat-related side stats are increased significantly. Cooldown: 1 day. 

Not only was Maurelion's War Sword an S-rank item, but it had a level requirement of 300! It also came with some amazing item effects too. 

Maurelion Warrior was a buff that explosively increases one's stats! 

Joy of Battle was a Berserker skill, which increases the user's power proportional to how long the battle lasted. 

However, this skill came with some...