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Invasive Surgery

Card Name

Invasive Surgery

Mana Cost

Type

Instant

Rarity

Uncommon

rules Text

Counter target sorcery spell.Delirium — If there are four or more card types among cards in your graveyard, search the graveyard, hand, and library of that spell's controller for any number of cards with the same name as that spell, exile those cards, then that player shuffles his or her library.

Legal Formats

Commander, Explorer, Legacy, Modern, Pioneer, Vintage

Not Legal Formats

Alchemy, Brawl, Historic, Pauper, Standard

Rulings

(4/8/2016)
Invasive Surgery's delirium ability isn't checked until after the sorcery spell has been countered. If that spell is put into your graveyard, it will be counted.
(4/8/2016)
The card types in Magic are artifact, battle, creature, enchantment, instant, kindred, land, planeswalker, and sorcery. Supertypes (such as legendary and basic) and subtypes (such as Human and Equipment) are not counted.
(4/8/2016)
The number of card types matters, not the number of cards. For example, Wicker Witch (an artifact creature) along with Catalog (an instant) and Chaplain's Blessing (a sorcery) will enable delirium.
(4/8/2016)
Because you consider only the characteristics of a double-faced card's front face while it's not on the battlefield, the types of its back face won't be counted for delirium.
(4/8/2016)
In some rare cases, you can have a token or a copy of a spell in your graveyard at the moment that an object's delirium ability counts the card types among cards in your graveyard, before that token or copy ceases to exist. Because tokens and copies of spells are not cards, even if they are copies of cards, their types will never be counted.