The last ability triggers whenever you cast any Merfolk spell, not just when you cast a Merfolk spell from the top of your library. It will resolve before the spell that caused it to trigger, even if that spell has been countered or otherwise left the stack.
If the top card of your library changes while you're casting a spell, playing a land, or activating an ability, you can't look at the new top card until you finish doing so. This means that if you cast the top card of your library, you can't look at the next one until you're done paying for that spell.
You must follow the normal timing permissions and restrictions of the cards you play from your library.
Last observed on Scryfall 2 months ago at $0.45. Over the trailing 90 days the price moved between $0.34 and $1.35 across 51 observations. Cross-checked across TCGplayer, eBay sold, Cardmarket EU, and Star City.
This printing is one of 3 catalogued treatments from DMC — 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 #23 of *Dominaria United Commander*, the set that shipped alongside the September 2022 Dominaria United Commander release.
Card type: Legendary Creature — Merfolk Noble, color identity blue, printed at rare. Rares occupy the bottom-of-pack rare slot in standard boosters. Mana cost: {1}{U}{U} (3 converted).
Legal in Legacy, Vintage, and Commander.
EDHrec ranks this card #4,219 in Commander, putting it in the niche-pick tier of the format's playable pool.
Illustrated by PINDURSKI. Rarix catalogs 151 other cards credited to this artist.
Magic: The Gathering · ™ & © Wizards of the Coast · Illus. PINDURSKI
Card data via Scryfall. Rarix is fan-made; not endorsed by the rights holders.
Emperor Mihail II lets you look at the top card of your library whenever you want (with one restriction—see below), even if you don't have priority. This action doesn't use the stack. Knowing what that card is becomes part of the information you have access to, just like you can look at the cards in your hand.
