MTG Star Trek Borg Precon Introduces Future Staple Mana Rock

Last updated on October 27, 2026

Forest | Illustration by Bastien Grivet

Mana rocks are the foundation of many Commander decks as the format’s multiplayer aspects encourage building up resources; there’s simply more time and cause to spend the early turns dropping Talismans and Signets and the like. While every set brings new mana rocks, few have as much potential as Star Trek’s Queen's Diamond, a 4-mana rock designed to support big mana commanders:

This is a spacecraft-slash-mana-rock, much like Edge of Eternities’ The Eternity Elevator (except this can be a spacecraft commander since it has a power/toughness box). It makes lots of mana, except it can only be spent on your commander. But that’s still a fantastic deal as you can station it to tap for large amounts of mana. It’s not hard to see this beating Thran Dynamo in efficiency since it converts all your power to mana the turn you cast it. Because it ramps so well, this works best as support for high-mana value commanders or cheap commanders you’re interested in recasting.

High-Mana Value Commanders

High mana value commanders, like those pictured above, have a few distinct weaknesses. Firstly, power creep means cheaper spells are often as impactful, if not more so, than these heavy-hitters. Since they cost so much, the commander tax affects them more—Toxrill, the Corrosive costs nine mana to recast once, by which point you could have recast Teval, the Balanced Scale twice. Also, since they take so long to come down and are highly telegraphed, your opponents have plenty of time to find a counterspell for your Ureni of the Unwritten.

For these reasons, high-cost commanders often lean heavily on ramp to power them out quickly and keep recasting them. Queen's Diamond excels at this because it converts all the power on your board into mana. It’s very easy to imagine a world where you play this on turn 5, tap the creatures you played on the previous turns, then still drop your commander ahead of schedule. And paying the commander tax from there is extremely simple as your commander can station Queen's Diamond and likely more than cover the cost (though there’s merit to keeping it at seven charge counters so it isn’t vulnerable to creature removal).

I’d expect Queen's Diamond to see decent play with commanders like The Borg Queen, head of the precon it’s printed in: Expensive, high-impact commanders you want to play early and often. It’s also a great boon for non-green commanders that would have limited access to a ramp like this. But don’t expect battlecruiser commanders to be the only ones playing Queen's Diamond.

Commanders You Recast

Not many commanders are designed to be continually recast, but that isn’t the same as them not existing. Jeska, Thrice Reborn comes to mind as a potential example—you could build up a bunch of charge counters, then tap it for enough mana to recast this planeswalker commander two or three times in one turn. Or you could feed Rograkh, Son of Rohgahh to a sacrifice outlet (it’s also just good with partner commanders, background commanders, etc, because you have twice as many cards to spend the mana on). Then there’s commanders like Jeleva, Nephalia's Scourge that actively reward recasting them.

A subcategory of commanders you want to recast are the few commanders that are also X-spells. Rocco, Cabaretti Caterer quickly comes to mind with cards like Temur Sabertooth (not that that’s the best combo with the Sabertooth), or you could bounce The Cyber-Controller to your hand with Boomerang Basics and then recast it—after juicing Queen’s Diamond[/card] with an extra three charge counters. And I wonder what you could do with a token generator like Farmer Cotton plus an Ashnod's Altar…yeah, expect a big, colorless mana rock like this to become a fast Commander staple.