Fighting very large opponents

[Wingsday]

reme is size agnostic though so you could just sleep them first

[ezzelino]

@Oskar

Circle Targets are pretty terrible for offensive combat spells, since they take several round to draw if you aren’t within a meter and a half of what you’re trying to affect (in this case, in kicking range), causes a botch if the circle is broken before the casting is complete, and require constant concentration checks if you try to make a larger circle. A circle 10 meters in diameter already takes four combat rounds.

Generally speaking, you are right. However, an ingenious magus can often bypass these issues.

For example, with a modest level of Imaginem he can have an illusion (e.g. of himself running in circles) keeping the giant(s) occupied, while he invisibly traces a wide circle around the scene.
EDIT: just as I clicked the button to submit this post, I noticed an ant slowly going around my armchair ...

Or he can change into something that is a cricle, say, 30 paces in diameter, and then he can draw a circle where he is with very little movement. A 200-ton, 110-pace long giant snake biting its tail in the shape of a circle can draw a 30-pace diameter circle on the ground almost without moving, just by wiggling a bit. And I can picture a Flambeau becoming a circular curtain of flame with MuCo(Ig), and then burning the circle into the ground!