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.
Gohan (Dragon Ball series), like most warriors, is able to channel his Ki into his body to empower his attacks.
Using the Super God Fist, Goku (Dragon Ball series) concentrates his Ki into his fist before punching Vegeta in the face.
When his sword was broken during the battle with Fused Zamasu, Future Trunks (Dragon Ball series) was able to form his ki around the broken blade into the shape of his Light Sword.
During the final battle with Fused Zamasu, Future Trunks (Dragon Ball series) was able to from the hopes within the human ki of everyone on Earth around his Light Sword, creating the stronger 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 her Eighty Gods Vacuum Attack.
Naruto (Naruto) infuses chakra into people to strengthen them.
Roronoa Zoro (One Piece) infusing his swords with haki.
Vergo (One Piece) infusing his entire body and bamboo stick with haki.
Charlotte Linlin (One Piece) infuses parts of her own soul into a Sun, a Cloud and a Bicorne Hat
Monkey D. Luffy (One Piece) infuses massive amount of haki into his rubber muscles to enter his Gear Fourth.
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.