Ghauninyoniara, Cursed-Blood

When Ghauninyoniara, Cursed-Blood enters the battlefield, if you have 3 or more permanents
with phyrexian mana symbols in their casting
cost and/or spells with phyrexian mana in your graveyard, put a +1/+1 counter onto all creatures
you control.
{w/b}: Target creature with either a +1/+1 counter
on it or target permanent with a phyrexian mana
symbol in it's casting cost gains shroud until end
of turn.