Dimensional Infiltrator — ruling 1

You choose whether to return Dimensional Infiltrator to its owner’s hand as its ability resolves. If the exiled card is a land card, you can’t wait and return Dimensional Infiltrator at a later time.

Dimensional Infiltrator : règles, fonctionnement et interactions (MTG)

Dimensional Infiltrator 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

Devoid (This card has no color.) Flash Flying : Target opponent exiles the top card of their library. If it's a land card, you may return this creature to its owner's hand. ( represents colorless mana.)

How it works : Dimensional Infiltrator

Original English text — Wizards of the Coast / Scryfall

#1January 22, 2016· Wizards of the Coast
You choose whether to return Dimensional Infiltrator to its owner’s hand as its ability resolves. If the exiled card is a land card, you can’t wait and return Dimensional Infiltrator at a later time.
No other card is named in this ruling.