Tesak, Judith's Hellhound

Mana cost: {3}{R}
Type: Legendary Creature — Elemental Dog
Power / toughness: 3 / 3
Set: Murders at Karlov Manor Commander #36 (rare)
Price: $0.33 USD

Unleash (You may have this creature enter with a +1/+1 counter on it. It can't block as long as it has a +1/+1 counter on it.)
Other Dogs you control have unleash.
Creatures you control with counters on them have haste.
Whenever Tesak attacks, add {R} for each attacking creature.

Tesak, Judith's Hellhound has 2 printings, first in Murders at Karlov Manor Commander (2024). EDHREC ranks it #12,650 among Commander cards. It appears most in Rin and Seri, Inseparable decks (4,434 on EDHREC). 1 public deck on TCG runs it. It has 5 official rulings.

Legality

commander: legal
legacy: legal
vintage: legal
pauper: not legal
modern: not legal
pioneer: not legal
standard: not legal
brawl: not legal

Public decks that run Tesak, Judith's Hellhound

Deadly Disguise - Murders at Karlov Manor Commander, led by Kaust, Eyes of the Glade

Commanders that run Tesak, Judith's Hellhound most

Deck counts from EDHREC.

Often played with Tesak, Judith's Hellhound

Cards that show up in the same decks on EDHREC.

Rulings

2024-02-02: You make the choice to have the creature with unleash enter the battlefield with a +1/+1 counter or not as it's entering the battlefield. At that point, it's too late for a player to respond to the creature spell by trying to counter it, for example.
2024-02-02: Putting a +1/+1 counter on a creature with unleash that's already blocking won't remove it from combat. It will continue to block.
2024-02-02: Count the number of attacking creatures when Tesak, Judith's Hellhound's last ability resolves, including Tesak itself if it's still on the battlefield, to determine how much mana to add.
2024-02-02: A creature with unleash can't block if it has any +1/+1 counter on it, not just one put on it by the unleash ability.
2024-02-02: The unleash ability applies no matter where the creature is entering the battlefield from.