Amrou Kithkin can't be blocked by creatures with power 3 or greater.
Legalities
Not Legal
Standardbrawl
Brawl
Future
Modern
Alchemy
Pioneer
Historic
Standard
Gladiator
Oldschool
Historicbrawl
Explorer
Timeless
Legal
Duel
Penny
Legacy
Pauper
Vintage
Commander
Premodern
Paupercommander
Predh
Oathbreaker
Rulings
2009-10-01
A creature with power 3 or greater can’t be declared as a blocker for Amrou Kithkin. If the power of a creature that’s already blocking Amrou Kithkin is increased to 3 or greater, it will continue to block Amrou Kithkin.