Carth the Lion | Karn, the Great Creator | Ugin's Nexus
(and two other cards)
Color Identity: B, G
Initial Card State
- All permanents on the battlefield.
Notable Prerequisites
available on all odd-numbered extra turns, with 
available on all even-numbered extra turns.
Mana Needed
on your first turn available.
Steps
- Activate Krark-Clan Ironworks by exiling Ugin's Nexus, adding
. - Ugin's Nexus triggers, causing you to take an extra turn after this one.
- Activate Karn's first loyalty ability by putting two loyalty counters on it, causing any artifact to become an artifact creature until end of turn.
- Activate The Chain Veil by paying
and tapping it, allowing you to activate all planeswalker abilities an extra time this turn. - Activate Karn's second loyalty ability by removing a loyalty counter from it, returning Ugin's Nexus from exile to your hand.
- Move to your next turn.
- Cast Ugin's Nexus by paying .
- Activate Krark-Clan Ironworks by exiling Ugin's Nexus, adding .
- Ugin's Nexus triggers, causing you to take an extra turn after this one.
- Activate Karn's second loyalty ability by removing a loyalty counter from it, returning Ugin's Nexus from exile to your hand.
- Move to your next turn.
- Cast Ugin's Nexus by paying .
- Repeat.
Results
- Infinite turns.
