Omenspeakerutility$0.03A cheap blue blocker that helps stabilize early while also smoothing future draws. It fills a similar defensive role for control decks at one mana more.
Wall of Runesutility$0.11Another one-mana blue defensive creature that buys time against aggressive decks. The scry effect gives it a similar value-oriented utility role.
Shield Sphereutility$7.84A free/near-free defensive wall-style creature that can block early and protect life total. It is a stronger pure defender option in the same stall-the-board role.
Suspicious Bookcaseutility$0.15A cheap blue blocker with high toughness and a defensive body. It serves the same role of slowing attacks while fitting blue's utility suite.
Guard Gomazoautility$0.62A very efficient blue defender that absorbs attacks without needing to attack back. It is a close functional equivalent for pure early-game defense.
Fog Bankutility$0.60A classic blue wall that prevents combat damage and blanks many attackers. It plays the same defensive role but is much harder to remove in combat.
Doorkeeperutility$0.06A cheap blue defender that can sit back and stabilize the board. It offers a similar role as a defensive early play with late-game utility.
Saruli Caretakerutility$0.16A one-mana defender-style creature that helps preserve tempo by stalling attacks and enabling other plays. It is not blue, but it fills a similar low-cost defensive slot.