Prince of Tennis Wiki
Fire, Forest, Lightning (KaRinRai)

Shot Type
Two-Handed Drive Half-Volley
Spin
Unknown
Class
Offensive, Defensive

This move was first used against Tezuka in singles 3 of the National Tournament Finals. It was Sanada's technique that was made during the match, to defeat Tezuka's "Zero-Shiki serve." Sanada combines Fire, Forest and Lightning, into 1 extremely powerful serve return. One can admit that "Rin" nullified the spin on the ball, "Rai" gave the swing (and dash toward the landing spot) the necessary speed and "Ka" gave the return the explosive power that knocked Tezuka's racket from his hand, rather than making it weak Rising that Tezuka could easily hit back (which would certainly result in him winning the point, given the condition of Sanada's legs). This was never shown in the OVA.