FAQ
Clear answers to common questions from the Tavern.
Which heroes does “Niu Ma Di Ruan” refer to?
“Niu Ma Di Ruan” is a Chinese shorthand formed from the names or nicknames of four Hearthstone Battlegrounds heroes.

E.T.C., Band Manager
“Niu” means ox and refers to the tauren E.T.C.
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Marin the Manager
“Ma” comes from the first syllable of Marin's Chinese name.
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Sire Denathrius
“Di” means emperor, from his common Chinese nickname.
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Master Nguyen
“Ruan” is taken directly from his Chinese name.
View hero guideWhere can I find the Hearthstone Battlegrounds codex?
You can browse the full Battlegrounds codex on the official Hearthstone website, featuring the latest data on all minions, heroes, anomalies, and more, sortable by tavern tier.
Go to official codexIs there a damage cap?
In solo Battlegrounds, damage is capped at 5 on turns 1–3, 10 on turns 4–7, and 15 from turn 8 onward. The cap is removed when four or fewer players remain, restoring full combat damage.
Is there rating protection?
Yes. Between 2,000 and 6,000 rating, there is a rating floor every 500 points. Once reached, your rating will not fall below that floor.