Intimidate



Intimidate is a static ability which restricts the types of creatures that can block a creature with intimidate. A creature with intimidate can't be blocked, except by artifact creatures and by creatures that share a color with it.

Example
Alex is attacking with an Accursed Spirit and Nora controls a Sliver Construct, a Canyon Minotaur, and an Undead Minotaur.

If Nora wishes to block the incoming Accursed Spirit, she can legally block it with the Sliver Construct, as it's an artifact creature; or the Undead Minotaur, as it shares a color with the Accursed Spirit; but not the Canyon Minotaur, as it neither shares a color with Accursed Spirit or is an artifact creature.

Comprehensive Rules
702.13. Intimidate


 * 702.13a. Intimidate is an evasion ability.


 * 702.13b. A creature with intimidate can't be blocked except by artifact creatures and/or creatures that share a color with it. (See rule 509, "Declare Blockers Step.")


 * 702.13c. Multiple instances of intimidate on the same creature are redundant.