Wiki Q&A

The supplied context does not contain any specific recommendation for spending points on Bonehorns. It only describes the general Taming Bestiary system: players earn up to 20 upgrade points per class (Attack, Utility, Tank), each class has its own pool, and upgrades cost 1, 2, and 2 points for Tiers 1, 2, and 3 respectively [1]. You can optionally spend up to 5 points on Cross-Class upgrades [2]. The context does not list which specific upgrades benefit Bonehorns or which class Bonehorns belong to. To decide, check the Info button next to each upgrade to see its bonuses at each tier [1]. No specific "best" build for Bonehorns is provided in the supplied chunks.