Legacy Tribal Wars Rules
Every main deck must have 20 cards that all share a creature type.
Changelings, including Tribal spells, count as every creature type and can count toward the 20.
As long as 20 cards sharing a creature type is met, you can have additional creatures of other types. This is to allow cards like Winota, Otepec Huntmaster, etc.
Tribal spells can count toward the 20 if they share the chosen type.
Example 1: You can include 20 creatures that are ALL Humans + a few copies of creatures that are NOT humans.
Example 2: You can include 16 creatures that are ALL Goblins + 4 Tribal spells that are Changelings.
Example 3: You can include 20 cards that share a creature type and have a 200 card deck.
NO sideboarding. 15-card sideboards will only include “Wish” targets and/or Companions.
Legacy format, with a few extra bans (Updated 9/24/20):
Arboria
Engineered Plague
Moat
Plague Engineer
The Abyss
Umezawa’s Jitte
Witch’s Vengeance