Conditional Evasion

Creatures whose own text restricts what may block them by a condition on the blockers: power-gated evasion ('can't be blocked by creatures with power 2 or less', Steel Leaf Champion, Garenbrig Paladin, Gate Colossus, Old Fat Spider) and the pre-keyword menace shape ('can't be blocked except by two or more creatures' printed as rules text rather than the Menace keyword). The aggro deck's mid-sized threats that walk past chump blockers. Distinct from the evasion keywords, which are the has_keyword tags, from Unblockable Granter and Evasion Granter, which give evasion to another creature, and from unconditional unblockability.