Guard GomazoautilityBudget$0.62A cheap flying wall-style blocker that is very hard to remove in combat and fills the same defensive role. It blocks almost anything effectively while staying in blue-white space.
Wall of FrostutilityBudget$0.21Another dedicated defensive wall with strong stall potential, and it similarly punishes attackers by making combat miserable. It is less evasive but serves the same board-stalling function.
Hover BarrierutilityBudget$0.85A classic flying defender that buys time the way Wall of Denial does, especially in control shells. It is less resilient, but the role and colors overlap closely.
Jeskai BarricadeutilityBudget$0.44A flash defender that can protect your board or itself by returning a creature, while also functioning as a sturdy wall. It is more flexible than Wall of Denial but fills a similar defensive slot.
Silumgar ButcherutilityBudget$0.05An evasive, hard-to-answer defensive body that can interact while holding the ground or air. It is not a wall, but it plays a similar role as an efficient blocker in blue-white style control decks.
Aegis TurtleutilityBudget$0.05A simple early-game defensive creature with high toughness that helps stall aggressive decks. It lacks flying and shroud, but it is a budget-friendly equivalent in pure blocking role.
Wall of RunesutilityBudget$0.11A one-mana defender that helps smooth draws and block early attackers, offering cheap setup for control decks. It is much smaller, but it performs the same stall-and-fix role.
Dream StalkerutilityBudget$0.19A cheap blue creature that can repeatedly reset your own permanents and serve as a tempo blocker. It is not a wall, but it fits a similar low-cost blue defense/control shell.