Blood punch

The Blood Punch is an ability for the Doom Slayer in Doom Eternal

Overview
The Blood Punch is a melee attack that releases a shockwave when hitting a monster, damaging nearby foes in addition to the primary target; the attack is strong enough to instantly kill monsters as strong as a Pinky, and deals heavy damage to stronger ones as well. Additionally, it can break through enemy shields, even magic ones like the Marauder's.

Although it does not require ammo, it must be charged before use by performing glory kills. Two glory kills will provide a single charge, and only one charge can be stored at a time.

Upgrades
While it is not upgraded directly, the Blood Punch receives three automatic upgrades as part of the story:
 * Doom Hunter Base: Blood punches are more powerful.
 * Sentinel Prime: Glory kills on Heavy monsters will fully charge the Blood Punch.
 * Urdak: Each charge allows for the use of two Blood Punches before being expended, allowing the move to be used more often.

Runes
One Rune affects the Blood Punch:
 * Punch and Reave: Monsters killed with the Blood Punch are guaranteed to drop health pickups, which can be used in synergy with Health for Blood to keep the Blood Punch charged.

Sentinel Crystals
Two Sentinel Crystal upgrades affect the Blood Punch:
 * Health for Blood: Health pickups acquired when the player's health is maxed out will charge the Blood Punch.
 * Armor for Blood: Armor pickups acquired when the player's armor is maxed out will charge the Blood Punch.