Bloodmoon Rising is one of the Archives challenge modes. As such, it's only around during the Archives event and certain days of the Anniversary event (which rotates event modes on a daily basis).

Right now, there are no events running. The next event will be the Summer Games event, which usually starts in mid-July/early-August.

On a side note, there are always 7 arcade modes available. Mystery Heroes and Quickplay Classic are always available, 2 cards rotate daily, and the rest are either taken up by special modes or rotate daily.

Bloodmoon Rising is one of the Archives challenge modes. As such, it's only around during the Archives event and certain days of the Anniversary event (which rotates event modes on a daily basis).

Right now, there are no events running. The next event will be the Summer Games event, which usually starts in mid-July/early-August.

On a side note, there are always 7 arcade modes available. Mystery Heroes and Quickplay Classic are always available, 3 cards rotate daily, and the rest are either taken up by special modes or rotate daily.