Example

Giveaway bot

Button or reaction entries with automatic winner selection.

With optional permissions

85056

0x14C40

Required only

19456

0x4C00

Verdict: Minimal

Needs

See giveaway channels

Announce giveaways and winners

Giveaway embeds

Add the entry reaction

Read reactions on older giveaways

Posting and editing its own messages needs nothing special.

Pinging winners works without it; only @everyone needs it.

Tip

Use buttons for entries so the bot never needs to read reactions.