Starter Deck

Starter Deck is a passive item.

Effects

 * Allows Isaac to carry two cards or runes at once. Cycle through cards by pressing the Control key (PC), R2 (PlayStation), RT (Xbox), or ZR (Switch, 3DS).
 * Replaces all pills with cards. Pills already on the ground will be converted to cards or runes upon picking up Starter Deck.
 * Spawns a random card.
 * Runes, soul stones, and other cardlike consumables are also possible.

Interactions

 * : Spawns cards or runes instead of pills. Using cards or runes will not trigger the room-wide poisoning effect.
 * : A pill drops normally, but if it is picked up and dropped, or left on the ground while visiting other rooms, it becomes a card.
 * : Overrides the effect of Little Baggy (switch from receiving only pills to only cards).
 * Having both items allow both cards and pills to appear again.
 * Picking up Little Baggy while already holding Starter Deck will turn any held cards or runes into pills for one time.
 * : Gives a card instead of a pill, essentially becoming equivalent to a.
 * : Forces Isaac to eat pills even with Starter Deck.

Trivia

 * The Starter Deck will paint a five-color pentagram on Isaac's head, which is a reference to the Magic: The Gathering logo.
 * This item is used in It's in the Cards (challenge #14).
 * Starter Deck also appears in Cantripped! (challenge #43) with a unique function of increasing the number of item cards that can carry at once. It replaces all Boss Room rewards in this challenge.