If someone could cast a row of magic spells just with a swipe of their hand, regardless of the level of magic, that person is definitely not a rookie, because this involves elemental interference.
If someone could cast more than two magic spells at a close distance, it means they have good elemental control.
What surprised the Undead more was that he cast a line of twelve exploding fireballs, and the opponent cast a line of thirteen exploding fireballs, just one more than he did.
Was it intentional or coincidental?
The Undead hastily waved his hand; the explosive fireballs in front of him shot out swiftly, while his body rapidly retreated backward.
Ange also waved his hand; the exploding fireballs in front of him accurately met the Undead's fireballs, detonating them one by one, with the extra one shooting towards the Undead.