Cheapest priced copy (Kaldheim): $0.49 at Card Kingdom, near mint, their price list as of .
Warchanter Skald 
Creature — Dwarf Cleric · 2/3 · Uncommon · Kaldheim · #381
Whenever this creature becomes tapped, if it's enchanted or equipped, create a 2/1 red Dwarf Berserker creature token.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
2 printings · $0.49 to $0.59 at Card Kingdom
3 rulings from Wizards of the Coast
- 5 February 2021For the triggered ability to trigger, Warchanter Skald has to actually change from untapped to tapped. If an effect attempts to tap while it is already tapped, the ability won’t trigger.
- 5 February 2021Warchanter Skald’s triggered ability doesn’t allow you to tap it. You have to find some other way to tap it. You could attack with it, I suppose?
- 5 February 2021If Warchanter Skald isn’t enchanted or equipped at the moment it becomes tapped, the ability won’t trigger at all. If the ability does trigger, it will check again as it tries to resolve to make sure Warchanter Skald is still enchanted or equipped: if not, the ability won’t do anything. (Warchanter Skald could have different Auras and/or Equipment attached to it by that point, though.)