Banned
Grim Monolith
Artifact · {2}
Rationale
Why banned
Grim Monolith provides mana acceleration and combined with Power Artifact creates infinite colorless mana. Banned at the format's founding.
Oracle text
What the card does
! This card is currently banned in Premodern. The oracle text is shown for reference only.
This artifact doesn't untap during your untap step.
{T}: Add {C}{C}{C}.
{4}: Untap this artifact. Format authority
Cited from premodernmagic.com
Per Martin Berlin's Premodern format-authority site: premodernmagic.com/rules . premodernmtg.com mirrors the canonical banlist within 24 hours of any update.
Full analysis
The combo, the data, and the new metagame
Banned 2003-05-26. Rationale: Grim Monolith provides mana acceleration and combined with Power Artifact creates infinite colorless mana. Banned at the format’s founding. Source: Martin Berlin, premodernmagic.com.
See also: /grim-monolith/