Rawhide Rumble (Yellow)

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Beat Chest

When this attacks a hero, if you've beaten chest this turn, intimidate them.

Rulings

From the Heavy Hitters release notes

This does not trigger if you attack anything other than a hero (i.e. an ally).
To intimidate the hero being attacked, you may have beaten chest on any card this turn, not just from playing Rawhide Rumble.
Unlike some other intimidate effects, you must intimidate the hero being attacked. You cannot choose to intimidate any other hero.

Keyword notes

Intimidate - A brute mechanic that showcases how frightening a brute is to its enemies. Intimidate removes a random card from a hero’s hand until the end of turn, making it more difficult to defend.

The player who owns the banished card may look at it.
The card banished from intimidate is returned to hand at the beginning of the end phase. This is before players draw up to your (hand size).
You may target yourself with this ability. However you will receive the card back into your hand before drawing up to your (hand size). (Intimidating yourself is a very rare circumstance.)
You may target a hero with no cards in hand.
If there are other banished cards that aren’t from intimidate, it is encouraged to keep intimidated cards seperate from these cards.
The card banished from intimidate is returned to hand at the beginning of the end phase. This is before players draw up to hand size.
You may target yourself with this ability. However you will receive the card back into your hand before drawing up to your hand size.