Hunting Hounds

There are three common types of hounds:

• Yellow Hunting Hound
• Brown Hunting Hound
• Blue Hunting Hound

Size Categories

• CR 1 - Pup (suffix) - Medium
• CR 4 - Young - Large
• CR 8 - Adult - Giant
• CR 15 - Ancient - Huge

  Lore
The dogs grow as they age and as they eat. Eating smaller creatures will keep them fed. Eating something of the same size will contribute to growth. Eating something bigger will quickly lead to growth.
The dogs will occasionally work together to take on bigger or unfamiliar targets and split the meal before parting ways or turning on each other.
Bigger ones have more elemental mastery
Generally, they leave their own species alone.

Stats/Mechanics
Entei is resistant to fire/slashing (thick fur) weak to piercing. Entei deals fire and slashing (flaming claws)
Fire aura/flare blitz to reposition, players who can opportunity attack can instead use reflex to try to dive out of the way to avoid damage

Suicune is resistant to cold/piercing and weak to bludgeoning. Suicune deals cold and piercing (icicle claws)
Melt into snow or water to gain AC and reposition

Raikou is resistant to lighting/bludgeoning (soft cloud fur) weak to slashing. Raikou deals lightning and bludgeoning (electric foot pads)
Bounce/leap and glide to reposition and avoid opps

Each creature has either a legendary action or a reaction that they can spend at the end of another creature's turn. Weak/small ones have to use the reaction.