Murri, Royal Architect

When Murri, Royal Architect enters or attacks, create an indestructible artifact named Fortification with "Fortified land is indestructible and can't be sacrificed." then attach it
to any land on the battlefield.

{t}Tap all fortified lands then choose up to one
• {1} - Gain one life for each fortified land.
• {3} - Each opponent looses 3 life for each fortified land they control.