Sentry Oak | Illustration by Warren Mahy This isnt really a broken space, as the only ways to get around the restriction on walls and defenders attacking are printed on cards that explicitly let you do that
Remember when I was talking about Battlefield Thaumaturge and Hidden Strings
Most valuable Magic: The Gathering Final Fantasy cards The Travelling Chocobo Boarderless collection with this set is ridiculous and by far the most valuable set of chase cards
What if it just grants a creature type
10 Refurbished Familiar One-Mana Forced Discard Although Refurbished Familiar costs four mana, more often than not, you'll be casting it for much less, usually just one black mana
2 Wall of Roots, Vine Trellis, Sylvan Caryatid, and Overgrown Battlement History has shown that a 2-drop Wall that accelerates your mana while providing a strong roadblock ends up being something in Standard