Toxic Arrow is a Hunter spell card (rarity: epic) that belongs to the "Knights of the Frozen Throne" set, which was released on 10.08.2017 and is one of initially 135 cards. The artist of this card was Zoltan Boros, who also made 249 other artworks for Hearthstone.
The card costs 2 mana and its card text reads: "Deal 2 damage to a minion. If it survives, give it Poisonous."
The flavor text of the card is the following: What doesn't kill you makes you toxic.
Based on 114 quiz answers, the card is moderately hard to memorize: 89% of them were correct. The question on “Name” is answered correctly most often (100%), the one on “Cost” least often (67%). An answer takes 6.4 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.