donutsweeper

Sundial allowing Li Qian's grandmother to protect Li Qian (ep 2)
4 (36.4%)

Sundial giving a hint about where to find the Awl (ep 5)
1 (9.1%)

Sundial acting as locator device for Wang Zhang in the Hanga caves (ep 10)
2 (18.2%)

Awl making Wang Zheng an energy being (ep 10, flashback)
2 (18.2%)

Awl imprisoning revenge-rampage!Sang Zan (ep 10, flashback)
1 (9.1%)

Awl giving visions of the sub-zero lab (ep 19)
3 (27.3%)

Sundial shielding Zhao Yunlan from Ye Zun's energy attack (ep 20)
4 (36.4%)

Sundial exchange restoring Zhao Yunlan's eyesight (but corrupting Shen Wei's energy) ep 20
1 (9.1%)

All four --> time travel! (ep 34)
7 (63.6%)

All four --> time travel back! (ep 35)
9 (81.8%)

All four imprisoning revenge-rampage!Ye Zun (ep 35, flashback)
2 (18.2%)

All four facilitating the Skype call to YOHE (ep 38)
3 (27.3%)

The Lantern (with bullet) making a booby-trap for Ye Zun (ep 39)
1 (9.1%)

All four lighting Dixing (ep 40)
5 (45.5%)

other (please specify in comments)
3 (27.3%)

he's healing himself instead of someone else
2 (14.3%)

it's a physical injury rather than a failing life force (cf Teacher Zhang, Butler Wu)
1 (7.1%)

the injury hurts, owwww
3 (21.4%)

he's left it so long since the injury was incurred
3 (21.4%)

he's alone and doesn't have to hide his effort
10 (71.4%)

other (please specify in comments)
2 (14.3%)