- For tribal in a broader sense, see Tribal (theme).
Tribal is a card type first introduced in Future Sight, and expanded upon in the Lorwyn block.     Creatures and tribals share the same set of subtypes. Tribal returned in Rise of the Eldrazi. It seems that the card type is being discontinued; Mark Rosewater announced its death knell, when it wasn't used in Innistrad (which had a strong tribal subtheme).
From the Comprehensive Rules
(Battle for Zendikar
(September 26, 2015
- 308.1. Each tribal card has another card type. Casting and resolving a tribal card follows the rules for casting and resolving a card of the other card type.
- 308.2. Tribal subtypes are always a single word and are listed after a long dash: “Tribal Enchantment — Merfolk.” The set of tribal subtypes is the same as the set of creature subtypes; these subtypes are called creature types. Tribals may have multiple subtypes. See rule 205.3m for the complete list of creature types.
- Tribal is not a permanent type. However, a tribal card can become a permanent if another of its types allows it to do so.
- Many Lorwyn cards refer to specific creature types. These cards may affect tribals, depending on what they say and what they do. For example, using "Goblin" as our creature type:
- If a card uses "Goblin" as a noun (that is, without following it with a word like "card" or "spell"), it actually means "Goblin permanent." It can affect any Goblin permanent in play, including a Goblin tribal.
- If a card says just "Goblin creature," it can affect only a Goblin creature in play. It can't affect a tribal.
- If a card says "Goblin card," it can affect any Goblin card not in play, including a Goblin tribal card.
- If a spell asks whether you control a Goblin, it's asking whether you control a Goblin permanent. It won't count Goblin spells you control (including itself).
- If a card with multiple types has one or more subtypes, each subtype is correlated to its appropriate type.
- When one or more of a permanent's subtypes changes, the new subtype(s) replace any existing subtypes from the appropriate set (creature types, land types, artifact types, enchantment types, spell types, or planeswalker types). It won't affect the subtypes from any other set, and it won't affect the permanent's types.
- If a permanent ceases to be one of its types, the subtypes correlated with that type will remain if they are also the subtypes of a type the permanent currently has; otherwise, they are also removed for the entire time the permanent's type is removed.
- Many older cards have received errata in the Oracle card database to work sensibly with tribals. For example, instant and sorcery cards can't come into play. If an older card was printed with a wording that allowed you to put a Goblin card into play, it now specifies that you can put a Goblin permanent card into play.
- ↑ Mark Rosewater. (October 1, 2007.) "And the Rest", Daily MTG, magicthegathering.com, Wizards of the Coast.
- ↑ Mark Rosewater. (October 08, 2007.) "Before and After", Daily MTG, magicthegathering.com, Wizards of the Coast.
- ↑ Devin Low. (September 28, 2007.) "Mixed Doubles: Two Types and Two Keywords", Daily MTG, magicthegathering.com, Wizards of the Coast.
- ↑ Devin Low. (October 12, 2007.) "Surprising Subtypes", Daily MTG, magicthegathering.com, Wizards of the Coast.
- ↑ Doug Beyer. (October 10, 2007.) "The Flavor of Tribals", Daily MTG, magicthegathering.com, Wizards of the Coast.
- ↑ Mark Rosewater. (September 19, 2011.) "Scary Stories, Part 1", Daily MTG, magicthegathering.com, Wizards of the Coast.