Adrenaline

Description
If you have 50% HP at the beginning of a battle, start the battle with 3 Spell Power and Haste.

Will not trigger if your maximum health is 1, such as in Hell Pass 14 or while is equipped, as the effect activates based on a percentage of your current Max HP.

Strategy and Synergy
Adrenaline is a highly situational artifact that at times can help the player gain an upper hand. greatly improves multi-hit spells such as the, increasing the overall DPS. -decks can also somewhat benefit from this artifact, increasing the overall damage output whenever low on health.

The can come in handy in certain occasions, as the extra speed gives the player more time to dodge and evade faster attacks, typically from enemies/bosses later on the game or during a loop run.