Kōga Kuchiki (Bleach) infusing his halberd with his spiritual aura, increasing his power.
Kirio Hikifune (Bleach) is a culinary master who infuses life energy into the food she cooks…
…enhancing its nutrition to the point they can empower life.
Kyujin (Dolly Kill Kill) infuses phantasm into his first to penetrate a dolly's barrier.
Kento (Dolly Kill Kill) infusing phantasm in his sword for unrivaled sharpness capable of cutting nearly anything.
Using the Super God Fist, Son Goku (Dragon Ball series) concentrates Ki into his fist before punching Vegeta in the face.
Son Gohan (Dragon Ball series), like most warriors, is able to channel his Ki into his body to empower his attacks.
When his sword was broken during the battle with Fused Zamasu, Future Trunks (Dragon Ball series) was able to form ki around the broken blade into the shape of Light Sword...
... during the final battle with Fused Zamasu, Future Trunks could form the hopes of the human ki of everyone on Earth around his Light Sword, creating Spirit Bomb Sword that was powerful enough to defeat Fused Zamasu.
Krillin (Dragon Ball) concentrating his Ki into his fists.
Kagome Higurashi (InuYasha) infuses an arrow with spiritual power.
Kurohime (Magic User Kurohime) infusing her gun with the spiritual power of the four Spirit Kings to create the Ultimate Sword.
Kaguya Ōtsutsuki (Naruto) infusing chakra into her fists with Eighty Gods Vacuum Attack.
Naruto (Naruto) infuses chakra into people to strengthen them.
Thanks to his mastery of Haki, Vergo (One Piece) can infuse his fist...
...his bamboo stick...
...and entire body with Busoshoku Haki - Koka.
Monkey D. Luffy (One Piece) infusing a massive amount of Haki into his rubber muscles to enter Gear Fourth - Bounceman.
Donquixote Doflamingo (One Piece) infuses his fist with Busoshoku Haki - Koka to enhance punching power.
Roronoa Zoro (One Piece) infusing his swords with Busoshoku Haki - Koka.
Kin'emon (One Piece) infuses Busoshoku Haki - Koka on to his swords.
Charlotte Linlin (One Piece) infuses parts of her own soul into a Sun, a Cloud and a Bicorne Hat.
Reinhard (Re:Zero) can draw out all the spiritual energy in an area and infuse his weapon with its power.
Jung-Woo (Rebirth Knight) empowers his attacks using knight spirit.
Momotaro Tsurugi (Sakigake Otokojuku) infuses ki into his headband to harden it.
Ryo Bakura (Yu-Gi-Oh!) infuses his dice with a portion of his soul, ensuring he will roll a super critical.
Yusuke Urameshi (Yu Yu Hakusho) uses Spirit Punch to infuse his fist with Spirit Energy.