KRV Paladins question

I keep seeking this image in the wiki of a KRV Paladin raising their sword glowing blue to heal a nearby footman, yet I don't recall that abilitiy ever been used when I played the game, mentionned in the wiki page itself or seen in a video.

Is it rare? Is it not implemented? Is it fanmade?

I keep seeking this image in the wiki of a KRV Paladin raising their sword glowing blue to heal a nearby footman, yet I don't recall that abilitiy ever been used when I played the game, mentionned in the wiki page itself or seen in a video.

Is it rare? Is it not implemented? Is it fanmade?