Confirmed also with Zach. There is a long list of doubters on this site that never said he would hit the ice. I'm very happy for him. This move was likely done before the trade deadline because you're only allowed four player recalls after the deadline for the remainder of the season.
Something to remember is that an NHL-contracted player who is waiver exempt, must be on the roster of the AHL team at the trade deadline to qualify for eligibility in the AHL playoffs.
After the trade deadline, there are only four recall roster slots available to be used at any time for loaning players to the AHL.
Cal Petersen is going to solely occupy one of those slots in order to play for the Reign in the playoffs. So there won’t be another player rotating with Petersen between the NHL and AHL.
That leaves the Kings with choices to make between Wagner, Lizotte and Prokhorkin. Because one them won’t be eligible if Vilardi, Luff and Grundstrom share the lone remaining slot for callups.
I’m speculating that Prokhorkin won’t be asked to play in the AHL again even though he is still waiver exempt.
The only way to have Prokhorkin, Lizotte and Wagner eligible is to keep at least one of those three in the AHL at all times and use those three roster slots between them and Vilardi, Luff and Grundstrom. In other words, three roster slots interchangeable between six players.
There is no restriction on the number of recalls as long as when you recall one, you send one of the players using a slot down.