Magic Open House is a Wizards Play Network event planned on the Saturday before each set's Prerelease. It was introduced for the Amonkhet release on Saturday, April 15, 2017. This new event encourages casual fun for new players and easy, league-style Standard play with a Welcome Deck and a participation promo reward.
Starting with Ixalan, a Full-art Ixalan promo preview card was given.
Open house Promos exist in the 11 languages.
Starting with Core Set 2020, Promo Packs are replacing the former Open House, Draft Weekend, Magic Weekend, and Friday Night Magic promos. The events aren't going away, but now you'll get Promo Packs there instead of a specific promo card.
Magic Open House Ixalan promotional kit
What's in Store for In-Store Play, News
So Much Amonkhet News, News
In-Store Play Evolves, Feature Article
Ixalan Promos, Planeswalker Decks, Packaging, and FNM Tokens!, Card Preview
The Promos of Dominaria, News
Promo and Premium Packs
|001||130/279 P OpenHouse||Walk the Plank||Christopher Moeller||Ixalan Magic Open House participation bonus||2017-09-16||YES|
|001||053/196 P Open House||Silvergill Adept||Slawomir Maniak||Rivals of Ixalan Magic Open House participation bonus||2018-01-06||YES|
|002||168/269 P Open House||Llanowar Elves||Victor Adame Minguez||Dominaria Magic Open House participation bonus||2018-04-14||YES|
|003||145/280 P Open House||Guttersnipe||Izzy||Core Set 2019 Magic Open House participation bonus||2018-06-30||YES|
|004||156/259 P Open House||Boros Challenger||Lucas Graciano||Guilds of Ravnica Magic Open House participation bonus||2018-09-22||YES|
|001||197/259 P Open House||Rakdos Firewheeler||Tyler Walpole||Ravnica Allegiance Magic Open House participation bonus||2019-01-12||YES|
|002||098/264 P Open House||Liliana's Triumph||Heonhwa Choe||War of the Spark Magic Open House participation bonus||2019-05-04||YES|