What is the server command to give my named wolf more health in Minecraft version 1.16

What would the Minecraft Server/cheat command be to give a wolf more health. I know that you can make a named wolf invincible, but I'd prefer to just increase the wolf's health.

Solution 1:

Directly, I don't think it is possible to increase an already spawned mob's health without help of a world editor.

Indirectly, you can give yourself a custom, infinite duration healthboost-effect splash potion with the following command from the Minecraft Tools potion generator:

/give @p minecraft:splash_potion{Potion:"minecraft:water",CustomPotionEffects:[{Id:21,Amplifier:127,Duration:2147483647}],display:{Name:"\"Custom Potion\""}}

This is a command that will give you a splash potion with the max level of health boost, being 128, with each level increasing the mob's health by 2 hearts (4 points of health).

And although this part probably doesn't answer your question, I'll include it for broadness, you can also just summon a wolf with more health using this command:

/summon Wolf ~0 ~1 ~0 {Attributes:[{Name:generic.maxHealth,Base:500}],Health:500.0f}

With "500" being an adjustable number, though bear in mind that 1024 is the maximum amount of health points a given mob can have.

Solution 2:

The command

/effect give @e[name="name of your dog here"] health_boost 1000000 255

would give your wolf an exorbitant amount of health.

You can add other effects, such as resistance to make it unkillable, strength to make it kill nearly everything, etc., etc.