Is Geth's Grimoire good in Commander?

Geth's Grimoire in Commander — Combos, Decks & Price

Geth's Grimoire turns every opponent's discard into a free card draw, and in any deck built to force discards repeatedly, that translates to drawing four or more cards a turn off a two-mana artifact. Tinybones, Trinket Thief already rewards you for making opponents discard — the Grimoire just doubles down, converting the same triggers into raw card advantage.

Best Commanders

Commanders with the highest synergy

01

Tinybones, Trinket Thief

80.7% of decks · synergy 0.74

Tinybones, Trinket Thief's triggered ability fires whenever an opponent discards, and Geth's Grimoire fires off the same trigger — they're reading from the same script, so every discard spell draws you two cards and drains an opponent.

02

Zurzoth, Chaos Rider

72.7% of decks · synergy 0.72

Zurzoth, Chaos Rider forces each opponent to draw and then discard at the start of your end step, which means Geth's Grimoire is guaranteed to trigger at minimum every turn cycle without any additional spells.

03

Aclazotz, Deepest Betrayal

72.8% of decks · synergy 0.66

Aclazotz, Deepest Betrayal punishes opponents for having empty hands, and Geth's Grimoire accelerates the process of emptying them — every discard trigger refills your own hand while opponents fall further behind.

04

Kroxa, Titan of Death's Hunger

64.2% of decks · synergy 0.63

Kroxa, Titan of Death's Hunger demands discard as part of its core gameplan, and Geth's Grimoire converts each of those mandatory discards into a fresh card, letting the deck sustain card advantage even as it strips the table's hands.

05

Tinybones, Bauble Burglar

65.1% of decks · synergy 0.58

Tinybones, Bauble Burglar cares about casting spells from opponents' hands and graveyards, so it naturally fills the deck with discard effects — Geth's Grimoire rides that same shell and turns every forced discard into card draw.

Format Analysis

Where it lives, where it can’t

Format	Verdict
commander	legal
legacy	legal
modern	legal
pioneer	not legal
standard	not legal
vintage	legal
pauper	not legal
oathbreaker	legal

Commander is the format Geth's Grimoire was built for — three opponents means three separate discard triggers per spell, and the game goes long enough that a two-mana artifact with no ceiling on activations can generate ten or more cards in a single game. In Legacy and Vintage, the discard density exists but the format is too fast; a two-mana artifact that doesn't affect the board on the turn it enters is difficult to justify when games end on turns two and three. Oathbreaker sits in between — with 20-life totals and a planeswalker command zone, dedicated discard builds can make Geth's Grimoire work, though the smaller card pool limits how consistently you can trigger it. Outside of Commander, it's a niche piece.

Key Combos

Combo lines featuring this card

Budget Alternatives

Cheaper options that do most of the same work

The closest budget alternative is Waste Not, which also converts opponent discards into resources — mana, tokens, or cards depending on what gets discarded — and it's typically under $3. Waste Not doesn't give you a straight card per discard the way Geth's Grimoire does, but in decks that hit all card types, it often generates more total value; the trade-off is variance, since hitting lands produces mana instead of cards.

Price Context

Current price

$8.31 mid tier

At $8.31, Geth's Grimoire sits in the mid tier — expensive enough to feel like a purchase decision, cheap enough that it's a one-time buy for a staple you'll move between decks. The card has a narrow home but an extremely high inclusion rate in those homes, so the price is stable rather than speculative.