Oracle

Enchantment 

1, Discard a card: Create a 0/3 blue Crab creature token.
Delirium - Crabs you control get +1/+1 as long as there are four or more card types among cards in your graveyard.

Tournooi-info

Legal in: Vintage, Legacy, Modern, Commander

Officiele rulings

2021-06-18 - wotc
The card types that can appear in a graveyard are artifact, creature, enchantment, instant, land, planeswalker, sorcery, and tribal. Legendary, basic, and snow are supertypes, not card types; Vedalken and Wizard are subtypes, not card types.

2021-06-18 - wotc
Discarding a card is part of the cost of Scuttletide's first ability. There is no time for players to respond to the ability before the discarded card is in the graveyard.

2021-06-18 - wotc
The triggered ability triggers when creatures are declared as attackers attacking you or a planeswalker you control. It will not trigger if an effect puts a creature onto the battlefield attacking you or a planeswalker you control.

2021-06-18 - wotc
The token is named Clue and has the artifact subtype Clue. Clue isn't a creature type.

2021-06-18 - wotc
The tokens are normal artifacts. For example, one can be sacrificed to activate the ability of Breya's Apprentice and one can be the target of Break Ties.

2021-06-18 - wotc
You can't sacrifice a Clue to activate its own ability and also to activate another ability that requires sacrificing a Clue (or any artifact) as a cost, such as that of Lonis, Cryptozoologist.

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