You choose whether or not to cast the target instant or sorcery card as the reflexive triggered ability resolves. If you do, you do so as part of the resolution of the triggered ability. You can't wait to cast it later in the turn. Timing restrictions based on the card's type are ignored.
Halo Forager's enters-the-battlefield ability triggers and goes on the stack without a target. If you pay {X}, the second "reflexive" triggered ability will trigger. You'll choose the target instant or sorcery card for that second ability at that time, based on the value you chose for X. X can be 0.
If the card has {X} in its mana cost, you must choose 0 as the value of X when casting it without paying its mana cost.
Last observed on Scryfall 2 months ago at $0.43. Over the trailing 90 days the price moved between $0.25 and $0.43 across 55 observations. Cross-checked across TCGplayer, eBay sold, Cardmarket EU, and Star City.
This printing is one of 3 catalogued treatments from MOM — the lineup includes Foil and Nonfoil alongside the standard finish. Across our catalog the Rarix library tracks every variant in the same family so collectors can compare price, scarcity and demand inside a single lineage.
Card #385 of *March of the Machine*, the set that shipped alongside the April 2023 March of the Machine release.
Card type: Creature — Faerie Rogue, color identity black/blue, printed at uncommon. Uncommons fill the middle-tier slots in a standard booster configuration. Mana cost: {1}{U}{B} (3 converted). Keyword abilities: Flying.
Legal across the major constructed formats — Modern, Legacy, Vintage, and Commander — plus Standard rotation play.
EDHrec ranks this card #5,805 in Commander, putting it in the niche-pick tier of the format's playable pool.
Illustrated by Kevin Sidharta. Rarix catalogs 102 other cards credited to this artist.
Magic: The Gathering · ™ & © Wizards of the Coast · Illus. Kevin Sidharta
Card data via Scryfall. Rarix is fan-made; not endorsed by the rights holders.
If you cast a card "without paying its mana cost," you can't pay any alternative costs. You can, however, pay additional costs. If the card has any mandatory additional costs, those must be paid to cast the card.
