Laggania, Second to One

Menace
If the Era is Cambrian when Laggania enters the battlefield, and no other creatures have the creature
type Anomalocarididae, no creature may have a
power or toughness greater than Laggania. If they
do, set their power and toughness to equal that of Laggania.
{6}{u}: Create a 1/1 Trilobite creature token with no abilities
Sacrifice X Cambrian Trilobites: Laggania gains
+X/+0 until the end of this turn