Ulamog, the Defiler (Borderless) – MTG Proxy Modern Horizons 3

Commander

Legal

Modern

Legal

Pioneer

Not legal

Standard

Not legal

Legacy

Legal

Vintage

Legal

Pauper

Not legal

Format status describes the underlying Magic card, not eligibility of this printed product for sanctioned play.

Updated Nov 4, 2026

1. Jun 7, 2024
   Ulamog, the Defiler has received a minor update to clarify that the target of the first ability exiles the top half of their library. Its updated Oracle text appears above.
2. Jun 7, 2024
   Ulamog, the Defiler's first ability will resolve before Ulamog does. If Ulamog is countered or otherwise leaves the stack in response to its triggered ability, the triggered ability will still resolve as normal.
3. Jun 7, 2024
   If Ulamog is entering the battlefield directly from exile, it will see itself when determining which card has the greatest mana value among cards in exile. If that's Ulamog, which seems likely, it will enter with ten +1/+1 counters on it.
4. Jun 7, 2024
   Use the number of +1/+1 counters on Ulamog at the time its annihilator ability resolves to determine how many permanents defending player should sacrifice.
5. Jun 7, 2024
   Annihilator abilities trigger and resolve during the declare attackers step. The defending player sacrifices the required number of permanents of their choice before they declare blockers. Any creatures sacrificed this way won't be able to block.
6. Jun 7, 2024
   If a creature with annihilator is attacking a planeswalker, and the defending player chooses to sacrifice that planeswalker, the attacking creature continues to attack. It may be blocked. If it isn't blocked, it simply won't deal combat damage to anything.

Updated Nov 4, 2026