Birthday Cake

Rubbing it in - Birthday Cake enters the battlefields with one Candle counter plus an additional candle counter for each game the birthday boy has lost today.
{t}: Add {c}.
{1}: Give target birthday boy X birthday bumps where X is the number of Candle counters on Birthday Cake. You gain 1 life. Activate this ability only once per game.
{x}, {t}, Sacrifice Birthday Cake: Birthday Cake deals X damage to target player, you gain X life and draw X cards. Exile Birthday Cake and put it on the bottom o