Swamp

Arcane Signet

{T}: Add one mana of any color in your commander's color identity.

Plains

Jin Sakai, Ghost of Tsushima

Whenever Jin Sakai deals combat damage to a player, draw a card.
Whenever a creature you control attacks a player, if no other creatures are attacking that player, choose one —
• Standoff — It gains double strike until end of turn.
• Ghost — It can't be blocked this turn.

Arcane Sanctum

This land enters tapped.
{T}: Add {W}, {U}, or {B}.