Barbarian Reckless Attack is one of them:
When you make your first attack on your turn, you can decide to attack recklessly…
When exactly “you make your first attack”??
- When you declare the attack / target.
- Before Rolling the Dice.
- After rolling the dice, but before knowing hit / miss.
- After deciding hit / miss, before rolling for damage.
- After damage is dealt.
P.S.: This is about the wording, not about the barbarian ability. It is included only as an example of the wording appearing in official text.