Overlay card

An overlay card is a card that may be used on face-down cards to remind players of their power and toughness. Face-down cards are generally colorless 2/2 creatures with a creature type.

Morph
Khans of Tarkir introduced the overlay card for morphed cards. It was available in booster packs an extra card with an advertisement on the back side. It was later reprinted in Dragons of Tarkir and Commander 2019.

An alternate art for the morph overlay came with Masters 25.

Manifest
Fate Reforged added the overlay card for manifested cards. It was later reprinted in Commander 2018 and Commander 2019.