Red Buff, Phantom Dancer, and the nonexistent Randuin's
So, instead of
+
=
Wearer dodges all critical strikes,
Let's swap the crit defense onto
+
=
, with the effect being: Wearer takes normal damage from critical strikes.
And have
+
be Red Buff, with the effect it currently has.
That way, PD won't be a total counter to crit-oriented teams, the defense item against crits will actually consist of two defensive stats, and Red Buff will actually consist of an item that helps apply it. That's a triple win.
