Time Reaper — ruling 1

Most cards in exile are face up and can be targeted by Time Reaper's triggered ability. A card is face down in the exile zone only if the effect or action that put it there specifically says it puts it there face down (like the foretell ability).

Time Reaper : règles, fonctionnement et interactions (MTG)

Time Reaper 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

Flying, haste Consume Anomaly — Whenever this creature deals combat damage to a player, put target face-up card they own in exile on the bottom of their library. If you do, you gain 3 life.

How it works : Time Reaper

Original English text — Wizards of the Coast / Scryfall

#1October 13, 2023· Wizards of the Coast
Most cards in exile are face up and can be targeted by Time Reaper's triggered ability. A card is face down in the exile zone only if the effect or action that put it there specifically says it puts it there face down (like the foretell ability).
No other card is named in this ruling.