Riddle, Schema Machinator

Changeling (This card is every creature type.)
{t}{2}{u}{b}: each player mills a card, each opposing
creatures gains -X/-X until the end of the turn
where X is the number of nonland cards milled.
{t}{1}{u}{r}: target creature an opponent controls
gains first strike and is goaded until the start of
your next turn.
{t}{u}{w}: target creature you control and
Riddle, Schema Machinator phase out.
{t}{u}: target creature you control connives.