Minecraft Java Edition – Summoning a Mob on Fire with Minecraft Commands

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I've recently discovered a fun thing if a spider was on fire: the size of the fire would be twice the size of a normal one. So then, with commands, I summoned invisible spider (though their eyes are still visible) and then the effect was great. But there was a problem: I couldn't summon a spider ON FIRE, and I had to push them into one. So my question is:

How can I summon a spider that is on fire?

PS: For some more information, this is what I wrote:

/summon Spider {ActiveEffects:[{id:14,Duration:99999},{id:12,duration:99999}],Fire:99999}

Best Answer

The Fire: is a short tag, and 99999 is an invalid value. Try 32767, instead.