Knuckles the EchidnaHow it works & interactions with other cards

Combat Prowess and Treasure Generation

Knuckles the Echidna features a potent combination of Double strike, trample, and haste. This allows him to attack immediately and deal damage in both the first-strike and regular combat damage steps. His second ability triggers whenever one or more creatures you control deal combat damage to a player. Crucially, because he has Double strike, he can trigger this ability twice in a single combat phase—once during the first-strike damage step and once during the normal damage step—provided he is not blocked or his trample damage reaches the player.

Resolving the Win Condition

The 'Treasure Hunter' ability is an 'intervening if' clause. This means the ability checks two things: first, it checks at the very beginning of your upkeep if you control thirty or more artifacts. If you do not, the ability does not trigger at all. Second, the ability checks again as it tries to resolve. You must maintain control of at least thirty artifacts from the start of the upkeep until the ability finishes resolving to win the game.

Common Pitfalls

A common mistake is thinking you win the moment you create your 30th Treasure. The win condition only checks during your upkeep step, so reaching 30 artifacts during your main phase or combat won't end the game immediately. Additionally, note that the Treasure-generating ability triggers once per damage step for the group of creatures dealing damage, not once for each individual creature.

When to Play Knuckles

Knuckles is best deployed in aggressive decks that can protect him or in specialized artifact decks. Because he has haste, he is a great follow-up after a board wipe. If you are close to the thirty-artifact threshold, ensure you have ways to protect your artifacts from destruction until your next upkeep.

Interaction examples

Maximizing Treasure Production

Roaming Throne

If you name 'Echidna' or 'Warrior' with Roaming Throne, Knuckles's Treasure-generating ability will trigger twice each time your creatures deal combat damage. If Knuckles deals damage to a player in both the first-strike and regular combat damage steps, you will create two Treasures each time, totaling four Treasures from one combat.

Ramping to the Win Condition

Solemn Simulacrum

Solemn Simulacrum helps you reach your win condition in two ways: it provides an artifact body to count toward your total of thirty, and it ramps your mana to help you cast Knuckles earlier. If both attack and deal combat damage to a player, Knuckles will trigger and create a Treasure token.

The Power of a Treasure

Treasure

When Knuckles deals combat damage, you create a Treasure token. This token is an artifact that counts toward the thirty needed for Treasure Hunter. You can also sacrifice it for mana, but be careful: if you drop below thirty artifacts before the upkeep ability resolves, you won't win the game.