First printed in The Hobbit (2026)
Artifact
, 
: Target creature can't be blocked this turn.
, , Discard a legendary card with the same name as a legendary permanent you control: Draw two cards.
"I forgot to mention that with the map went a key, a small and curious key."
—Gandalf, to Thorin
- Illustrated by
- Nathaniel Himawan
Legality
- Legal in
- Standard, Pioneer, Modern, Legacy, Vintage, Future Standard, Historic, Timeless, Penny Dreadful, Gladiator, Commander, Duel Commander, Tiny Leaders, Oathbreaker, Brawl, Standard Brawl, Competitive Brawl
- Not legal in
- Pauper, Alchemy, Premodern, Old School 93/94, Pauper Commander, PreDH
Ruling (1)
- Activating the first ability of Key to the Side-Door after a creature has become blocked won't cause that creature to become unblocked.
Prices
MTGO price: 0.004 TIX, the cheapest non-foil print (average sell price on GoatBots, 1 Nov 2026).
In Limited on MTG Arena
Win rates in Arena drafts and sealed, retrieved from 17Lands (CC BY 4.0).
| Set | GIH WR | vs set | IWD | Games |
|---|---|---|---|---|
| The Hobbit (HOB), Premier Draft | 49.1% | -7.1 | -3.8 | 1514 |
- GIH WR
- win rate of the games in which the card was in the opening hand or drawn
- vs set
- points above or below the average win rate of all decks in the set
- IWD
- improvement when drawn: GIH WR minus the win rate when the card stayed in the library
- Games
- games in which the card was seen
