How flasks combine?

"

Spoiler

Flasks
Flasks come in four main varieties: life flasks, mana flasks, hybrid flasks, and utility flasks.

Life, Mana, and Hybrid flasks
These flasks cause you to regenerate life and/or mana when used. The amount recovered is shown on the flask as Life Recovery and Mana Recovery. The time it takes to recover the full amount is shown on the flask as Recovery Time. If you reach your maximum life and/or mana amount before the end of the recovery time, the flask effect will end prematurely. For example:

You are at 100/300 life, and 150/200 mana. You use a hybrid flask that has 400 Life Recovery, 200 Mana Recovery, and Recovery Time of 8 seconds. After 2 seconds, you will be at 200/300 life, and 200/200 mana, and the mana recovery effects ends. The life recovery continues, and at 4 seconds, you have reached maximum life, and the life recovery effect also ends.

Flasks can have magic modifiers that provide bonuses while the flask effect is active, for example increased movement speed or resistances. These bonuses end when the life/mana recovery effect ends.

When multiple flasks are used at the same time, the effects are queued. The effect with the highest regeneration rate is always applied first. For example:

You have two flasks, one that gives 500 life recovery over 10 seconds and has a 20% increased movement speed modifier, and a second that gives 500 life recovery of 5 seconds with no additional modifiers.
You use the first flask and gain the movement speed while recovering life. After one second, you use the second flask. At this point the remaining 9 seconds from the first flask is queued, and the second flask begins its effect. Once the second flask has expired, the first flask resumes its effect for the remaining duration.

Utility Flasks
These flasks give a temporary bonus for a set duration. Unlike the other flasks, the effects are not queued, each effect has its own timer that can overlap with other effects. The default effects of the flasks will not stack. For example:

You have a magic Granite Flask with +25% movement speed, and a regular Granite Flask, both giving +4000 armour for 4 seconds. You drink the first flask, and one second later you drink the second second flask. The result will be that for the first four seconds you will have +4000 armour and +25% movement speed. At the four second mark the first flask ends, but the second flask still has 1 second left. So you will have +4000 armour (but not the movement speed) for another 1 second.