Only a faint, blue light shone through his partner's loosely
gripped fist as he ran up the steps, but Eugeo still noticed. He had
probably generated them in secret while the knight delivered his
speech, and he had no doubt that was the radiance emitted by
cryogenic elements.

The knight finally drew the longbow to its limit when they
approached the halfway point of the twenty-steps staircase.

An art ritual rapidly gushed out from Kirito's mouth at the
same time.

“Form element, shield shape! Discharge!”

The number of elements that lined up and shot forward from
his left fist, sharply thrust out, was the maximum simultaneous
limit for a single hand, five. The blue points of light successively
transformed into large, round shields, starting with the foremost,
and creating a thick obstruction between Kirito and the integrity
knight.

(Alicization Rising, 161)