I'm working on entering Dael Kingsmill's "Beast Master Redux" subclass, and I've hit a curious entry. One of the items listed in it states:

As you level, your companion will grow alongside you. In addition to rolling your own hit point increases when levelling, roll increases for your animal companion using the hit dice listed on the creature’s ordinary stat block. When you gain ability score improvements at 4th, 8th, 12th, 16th, and 19th levels, your animal companion may increase any one of its physical ability scores by 1.

Is there currently any way to add an ASI to a Beast Companion through Class Feature options or perhaps a Feat? I think my best bet will be to make a homebrew copy of the player's companion animal and do the ASIs that way, but I'm open to other ideas

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I think my best bet will be to make a homebrew copy of the player's companion animal and do the ASIs that way, but I'm open to other ideas

 Currently that is the way to do it.