Giant Inheritance — ruling 1

If you don't choose a target attacking creature with the ability granted by Giant Inheritance, the Monster Role token won't be created.

Giant Inheritance — ruling 2

If the creature Giant Inheritance would enchant is an illegal target by the time the Aura spell resolves, the entire spell doesn't resolve. It's put into the graveyard from the stack, not the battlefield, so its last ability won't trigger.

Giant Inheritance — ruling 3

Giant Inheritance will return to its owner's hand from the graveyard only if it's still in the graveyard when its ability resolves. If it leaves the graveyard before that point, it will stay in whatever zone it's in, even if it's returned to the graveyard before the ability resolves.

Giant Inheritance — ruling 4

Roles are colorless enchantment tokens. Each one has the Aura and Role subtypes and the enchant creature ability.

Giant Inheritance — ruling 5

If a permanent has more than one Role attached to it controlled by the same player, each of those Roles except the one with the most recent timestamp is put into its owner's graveyard. This is a state-based action.

Giant Inheritance — ruling 6

If two or more Roles controlled by the same player become attached to a permanent at the same time (perhaps due to an effect such as that of Doubling Season), that player chooses which one to keep and which are put into their owners' graveyards.

Giant Inheritance — ruling 7

A permanent can have multiple Roles attached to it if each one is controlled by a different player.

Giant Inheritance — ruling 8

Some spells and abilities that create Role tokens require targets. If each target chosen is an illegal target as that spell or ability tries to resolve, it won't resolve. The Role token won't be created.

Giant Inheritance : règles, fonctionnement et interactions (MTG)

Giant Inheritance is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.

Official card text

Enchant creature Enchanted creature gets +5/+5 and has "Whenever this creature attacks, create a Monster Role token attached to up to one target attacking creature." (Enchanted creature gets +1/+1 and has trample.) When this Aura is put into a graveyard from the battlefield, return it to its owner's hand.

How it works : Giant Inheritance

Original English text — Wizards of the Coast / Scryfall

#1September 1, 2023· Wizards of the Coast
If you don't choose a target attacking creature with the ability granted by Giant Inheritance, the Monster Role token won't be created.
No other card is named in this ruling.
#2September 1, 2023· Wizards of the Coast
If the creature Giant Inheritance would enchant is an illegal target by the time the Aura spell resolves, the entire spell doesn't resolve. It's put into the graveyard from the stack, not the battlefield, so its last ability won't trigger.
No other card is named in this ruling.
#3September 1, 2023· Wizards of the Coast
Giant Inheritance will return to its owner's hand from the graveyard only if it's still in the graveyard when its ability resolves. If it leaves the graveyard before that point, it will stay in whatever zone it's in, even if it's returned to the graveyard before the ability resolves.
No other card is named in this ruling.
#4September 1, 2023· Wizards of the Coast
Roles are colorless enchantment tokens. Each one has the Aura and Role subtypes and the enchant creature ability.
No other card is named in this ruling.
#5September 1, 2023· Wizards of the Coast
If a permanent has more than one Role attached to it controlled by the same player, each of those Roles except the one with the most recent timestamp is put into its owner's graveyard. This is a state-based action.
No other card is named in this ruling.
#6September 1, 2023· Wizards of the Coast
If two or more Roles controlled by the same player become attached to a permanent at the same time (perhaps due to an effect such as that of Doubling Season), that player chooses which one to keep and which are put into their owners' graveyards.
No other card is named in this ruling.
#7September 1, 2023· Wizards of the Coast
A permanent can have multiple Roles attached to it if each one is controlled by a different player.
No other card is named in this ruling.
#8September 1, 2023· Wizards of the Coast
Some spells and abilities that create Role tokens require targets. If each target chosen is an illegal target as that spell or ability tries to resolve, it won't resolve. The Role token won't be created.
No other card is named in this ruling.
#9September 1, 2023· Wizards of the Coast
In rare cases, a spell or ability might attempt to create a Role token enchanting a permanent that it can't legally enchant (because of an ability like protection from enchantments). In such cases, the Role token isn't created.
No other card is named in this ruling.
#10September 1, 2023· Wizards of the Coast
Hexproof and shroud won't prevent a Role from becoming attached to a permanent if the ability creating that Role attached to that permanent doesn't target it.
No other card is named in this ruling.
#11September 1, 2023· Wizards of the Coast
Cards in the Wilds of Eldraine main set create six different Role tokens: Cursed, Monster, Royal, Sorcerer, Wicked, and Young Hero. A seventh Role token, Virtuous, is created by Ellivere of the Wild Court, the commander of the "Virtue and Valor" Commander Deck.
No other card is named in this ruling.