Much like it did last year, The Seven Deadly Sins: Grand Cross is celebrating its 3.5th Anniversary with the Holy War Festival. To commemorate this milestone, there is a new hero to recruit, new in-game events to take part in, and a whole treasure trove of rewards to reap.

Making their debut this year is the rather imposing Tyrant Demon King, an SSR unit that synergies rather well, shockingly, with demon units. At the start of battles, Ruler’s Reign will start for two turns and will increase Demon allies' attack by 18%. Pair this with his Incursion skill that decreases enemy Defense by 50% for two turns, and you will be pumping out some incredibly devastating damage.

If you want to be in with a shot at augmenting your evil army, then start spamming the 7DS 3.5th Anniversary Holy War Festival Draw. At 900 mileage you are guaranteed the King, with SSR heroes also being guaranteed at 300 and 600. These can include characters from the Four Archangels and Demons such as Purgatory Meliodas and Executioner Zeldris.

Once you've beefed up your baddies, head over to the new Event Boss, Kimara, or the Special Death Match Cooperation Event Einek. You will get yourself rewards such as Diamonds, SSR Evolution Pendants and Super Awakening Tokens depending on how you and your comrades perform.

If you prefer to get your kicks for free as it were, then 7DS has you covered with not one, not three, but two Check-In Events. Through the standard one, you will get yourself 70 3.5th Festival Tickets across 28 days, which is a long time but you get 77 heroes from it. The Special Festival Check-In Event only takes 14 days and will get you a Special Thank You Ticket for 11 consecutive draws, equaling a total of 154 heroes.

The Seven Deadly Sins: Grand Cross is available to download now from the App Store and Google Play.