Satyr is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.

Official card text

This creature can't block.

How it works : Satyr

Original English text — Wizards of the Coast / Scryfall

No additional ruling has been published for this card.

Interactions with other cards

These cards' text mentions Satyr.

Xenagos, the Reveler

+1: Add X mana in any combination of {R} and/or {G}, where X is the number of creatures you control. 0: Create a 2/2 red and green Satyr creature token with haste. −6: Exile the top seven cards of your library. You may put any number of creature and/or land cards from among them onto the battlefield.

Anax, Hardened in the Forge

Anax's power is equal to your devotion to red. (Each {R} in the mana costs of permanents you control counts toward your devotion to red.) Whenever Anax or another nontoken creature you control dies, create a 1/1 red Satyr creature token with "This token can't block." If the creature had power 4 or greater, create two of those tokens instead.

Gallia of the Endless Dance

Haste Other Satyrs you control get +1/+1 and have haste. Whenever you attack with three or more creatures, you may discard a card at random. If you do, draw two cards.

Satyr's Cunning

Create a 1/1 red Satyr creature token with "This token can't block." Escape—{2}{R}, Exile two other cards from your graveyard. (You may cast this card from your graveyard for its escape cost.)

Revel of the Fallen God

Create four 2/2 red and green Satyr creature tokens with haste.

Heroes of the Revel

When this creature enters, create a 1/1 red Satyr creature token with "This token can't block." Whenever you cast a spell that targets this creature, creatures you control get +1/+0 until end of turn.