Smoldering Tar — ruling 1

If you cast this as normal during your main phase, it will enter the battlefield and you’ll receive priority. If no abilities trigger because of this, you can activate its ability immediately, before any other player has a chance to remove it from the battlefield.

Smoldering Tar : règles, fonctionnement et interactions (MTG)

Smoldering Tar 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

At the beginning of your upkeep, target player loses 1 life. Sacrifice this enchantment: It deals 4 damage to target creature. Activate only as a sorcery.

How it works : Smoldering Tar

Original English text — Wizards of the Coast / Scryfall

#1April 15, 2013· Wizards of the Coast
If you cast this as normal during your main phase, it will enter the battlefield and you’ll receive priority. If no abilities trigger because of this, you can activate its ability immediately, before any other player has a chance to remove it from the battlefield.
No other card is named in this ruling.