Tengu format ruling
Human-Wave Tactics

Card effect (current official text)During the End Phase of each turn, select a number of Level 2 or lower Normal Monsters from your Deck equal to the number of your Level 2 or lower Normal Monsters destroyed as a result of battle during that turn, and Special Summon them to your side of the field. The Deck is then shuffled.
Rulings
- Human-Wave Tactics includes Tokens.
- If you have 2 Human-Wave Tactics then both effects are applied, so if 1 Level 2 or lower Normal Monster is destroyed in battle, then you Special Summon 2 monsters.
- If your monster is destroyed as a result of battle while on your opponent's side of the field, you can't get the effect of Human-Wave Tactics for that monster.
- If you don't have enough vacant Monster Card Zones to Special Summon as many monsters as you need to for Human-Wave Tactics, Special Summon as many as you can, and the rest are destroyed. This is also true for multiple Human-Wave Tactics, so if you have 2 Human Wave Tactics, and each wants to Summon 2 monsters, and you only have 3 Zones, Special Summon 3 monsters and destroy 1 monster.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Tengu forum — sourced change requests get reviewed.