Tower Winder 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

Reach, deathtouch When this creature enters, search your library and/or graveyard for a card named Command Tower, reveal it, and put it into your hand. If you search your library this way, shuffle.

Complete guide

Tower Winder is a versatile two-mana Snake that provides exceptional defensive utility while ensuring your mana base is consistent. By fetching one of the most important lands in Commander directly to your hand, it serves as both a blocker and a tutor. Whether you need to stop a flyer or fix your colors, this creature is a reliable utility piece for green decks.

A Defensive Powerhouse

Tower Winder combines two of the most effective defensive keywords: reach and deathtouch. Reach allows it to block creatures with flying, while deathtouch ensures that any amount of damage it deals to a creature is enough to destroy it. This makes Tower Winder a massive deterrent for opponents, as it can trade with even the largest dragons or angels for just two mana.

Searching for the Tower

When Tower Winder enters the battlefield, its triggered ability goes on the stack. You can look through your library, your graveyard, or both for a card specifically named Command Tower. You must reveal the card to all players before putting it into your hand. Importantly, you only shuffle your library if you chose to look through your library during the search; if you only retrieve the card from your graveyard, no shuffle is required.

Strategic Timing

Because this creature provides a land upon entry, it is best played early to ensure you hit your land drops. However, its deathtouch and reach make it a relevant draw in the late game to stall an opponent's air attack. Since it can pull Command Tower from the graveyard, it also provides great value if your land was previously destroyed or discarded.

Common Pitfalls

Note that Tower Winder's ability can only find a card named Command Tower. You cannot use it to find other lands like Forest or utility lands. Additionally, the ability is an 'enters' trigger; if Tower Winder is countered as a spell, the ability never triggers and you do not get to search.

Interaction examples

Aerial Defense

Tower Winder

Birds of Paradise

If your opponent attacks with Birds of Paradise (perhaps boosted by an effect), Tower Winder can use reach to block it. Because Tower Winder has deathtouch, the Birds of Paradise will be destroyed regardless of its toughness.

Early Game Acceleration

Llanowar Elves

Tower Winder

Command Tower

On turn one, you play Llanowar Elves. On turn two, you use the mana from a land and the Elves to cast Tower Winder. When it enters, you search your library for Command Tower and put it into your hand, ensuring you have the mana needed for your Commander on turn three.

Recovering from Land Destruction

Tower Winder

Command Tower

If your Command Tower was destroyed and is in your graveyard, playing Tower Winder allows you to choose to search your graveyard. You reveal the Command Tower from your graveyard and put it into your hand. Since you did not search your library, you do not need to shuffle.

Guide written with AI from the official text and rulings. Official English text prevails.