Talk:Macro Cosmos

hi there, I was wonding the rulings for "Macro Cosmos" say if you control "Gravekeeper's Servent" at the some time as controlling "Macros Cosmos" then your opponent can not declair an attack. does that also say I can't use effects like "Ryko, Lightsworn Hunter" and "Zombie Master" if my opponent is using that tactic?

GWolfAnubis