Wall
A Wall is usually a defensive creature that either has the rule text walls can't attack, or after an errata, has defender. Being a defensive creature, walls in general have a higher toughness then power but ther are exceptions like Blistering Barrier.
Walls were removed for a short time after 8th Edition because in a sense it was hard to fathom how a Wall of Wood which seemed stationary would be able to move to block a creature. In 10th edition each color, except black, saw a wall being printed. No explanation was given as to why walls came back to print.
Notable walls
- Steel Wall - a 0/4 artifact for 1 mana.
- Ætherflame Wall - a 0/4 with firebreathing and shadow block.