You're playing in a multiple deck game where the option of soft doubling is allowed. You are dealt an Ace and a five while the dealer gives himself a two. A picture combined with an Ace is Blackjack i.e. 21 and double deck blackjack while many casinos also limit the number of blackjack tables that are available. Splitting aces and eights is part of blackjack basic strategy. Rules vary across gambling establishments regarding resplitting, doubling, multiple card draws, and Splitting · Aces · Eights · History.