Source: Blizzard Entertainment

Blizzard Entertainment's strategy card game, Hearthstone, kicks off Battlegrounds Season 13: Cataclysm Calls today (the 15th, KST). The new season introduces two new keywords, a variety of new and returning trinkets, two new heroes, 48 new minions, and 61 returning minions.

First, the new 'Fodder' keyword is introduced. Fodder is a keyword for Demons; when used, Fodder minions are added to your personal minion pool. When you refresh and find Fodder, your hungry allied Demons will consume it to gain its stats, leaving the slot open to be filled again.

A new keyword for Dragons, 'Chromadrake,' has also been added. There are five types of Chromadrakes, each providing effects that buff both Dragons and Tavern spells.

New heroes are also joining the fray. Players can now play as Genn, Worgen King, who possesses the 'Duality' ability to acquire two different hero powers, and Mister Clocksworth, who can 'overclock' Battlegrounds compositions with his 'Recording' ability to push minions toward their next upgrade faster.

The 'Trinkets' mechanism returns with an improved system that offers more synergistic trinkets more frequently, featuring 73 new trinkets and 149 returning ones.

With the start of Season 13, Battlegrounds Ratings and the Battlegrounds Track have been updated, introducing a variety of new rewards, including Cataclysm-themed cosmetic items.

The 'Battle in the Firelands' event also runs from today through Wednesday, May 6. In an alternate timeline where the corrupted Firelord Ragnaros has burned the World Tree and now seeks to turn it into a bonfire, players must join forces with Malfurion to stop the threat. Successfully thwarting the threat will earn players various rewards, including cards, Cataclysm packs, coins, and hero skins.

More details regarding Battlegrounds Season 13 can be found on the official Hearthstone blog.