Oaken Summons is a Druid spell card (rarity: common) that belongs to the "Kobolds & Catacombs" set, which was released on 07.12.2017 and is one of initially 135 cards. The artist of this card was Konstantin Turovec, who also made 143 other artworks for Hearthstone.
The card costs 4 mana and its card text reads: "Gain 6 Armor. Summon a minion from your deck that costs (4) or less."
The flavor text of the card is the following: The Guild used oak trees until they all turned to ash.
Based on 126 quiz answers, the card is easy to memorize: 94% of them were correct. The question on “Cost” is answered correctly most often (97%), the one on “Card text” least often (92%). An answer takes 5.1 seconds on average. In the Pixel Quiz, which shows only the shape and colour of the card, it was recognised correctly 100% of the time.