Linnaeus, Avatar of Stillness

Eminence — Whenever you cast another Sloth
spell, if Linnaeus is in the command zone or on
the battlefield, you get a stillness counter. As long
as you have seven or more stillness counters, creatures you control get persist and +0/+5.
First Strike
{w}{b}{g}, {t}: Creatures your opponents control
lose all speed abilities until your next turn.