Creatures you control get +0/+2 until end of turn.
The strongest walls are made not of stone or steel but of the focused strength of warriors.
Illustrated by Scott Kirschner · Fifth Edition · #63
There are no rulings for Shield Wall.
Creatures you control get +1/+1 until end of turn.
Creatures you control get +0/+4 until end of turn.
Creatures you control get +0/+3 until end of turn.
Creatures you control get +2/+2 until end of turn.