Tengu format ruling
King Tiger Wanghu

Card effect (current official text)When a monster(s) with 1400 or less ATK is Normal Summoned or Special Summoned: Destroy those monsters with 1400 or less ATK. This card must be face-up on the field to activate and to resolve this effect.
Rulings
(1) Destroy all monsters with an ATK of 1400 or less that are Normal Summoned or Special Summoned.
- This (1) mandatory Trigger Effect activates in the Summon response timing (like Trap Hole).
- This effect verifies ATK at resolution, and includes all ATK modifiers.
- This effect activates if a monster(s) is Summoned face-down (by Super Nimble-Mega Hamster), it does not destroy the Special Summoned monster because its ATK cannot be verified.
- If this effect activated in response to a Normal Summon, it can be negated by Pulling the Rug.
- If this effect activated in response to a Special Summon, it can be negated by Swallow Flip.
- If multiple monsters are Normal / Special Summoned in a Chain, Wanghu triggers once and destroys all monsters with 1400 or less ATK that were Normal / Special Summoned in that Chain [REF].
- VS. Ignition Effect Priotity: Player A Normal Summons Exiled Force. Whangu's Trigger Effect starts a chain immediately, Exiled Force is destroyed (it's effect can't activate as a Chain Link of 2+).
- VS. Treeborn Frog: Treeborn Frog will be destroyed, but can Special Summon itself again. Doing so without purpose is considered stalling, a violation of Tournament Policy.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Tengu forum — sourced change requests get reviewed.