One Panel #420-422: It's a Kind of Magic

From Johnny Thunder: "Johnny Joins the Rodeo" by John B. Wentworth and Stan Aschmeier, Flash Comics #21 (September 1941)

Golden Age stories about magic-using characters provide the most delicious out-of-context panels, don't they? And yes, Johnny Thunder most definitely counts, even if it's the Thunderbolt that casts all the spells. Here, Johnny accidentally asked a bull to fight him like a man.

From Tor the Magic Master: "The Sabotaged Submarine" by Fred Guardineer, Crack Comics #16 (September 1941)

Tor talks to a fish! Aquaman doesn't exist yet, so somebody's gotta do it.

From Merlin the Magician (untitled story) by Fred Guardineer, National Comics #15 (September 1941)

Merlin helps the Chinese fight against the Japanese by resurrecting ancient dead Chinese soldiers. And they're super-pumped about it (the undead soldiers, I mean). No dialog to prove it in this panel, but a terrifying light show helps the Japanese crap their tanks!