Sebastian Engwall
eSports Player
Professional Hearthstone gamer who has gained popularity playing under the gamertag Ostkaka. He has earned renown for his play for the team Natus Vincere.
He began his professional Hearthstone gaming career in April 2014 as a member of vVv Gaming. He later joined Natus Vincere in September 2015.
In November 2015, he finished in 1st place overall at the 2015 Hearthstone World Championship tournament. In February 2016, he finished in 3rd place at The Curse Trials tournament.
He was born and raised in Sweden.
He and fellow gamer Forsen have both risen to prominence playing Hearthstone.