Rune-Sealed Wall: Big-butts decks like Arcades always love something with 5 or more toughness
Note the damage comes from the land and should be colorless for prevention stuff or you adding in Circle of Protection: Red things
For example, if Bottomless Pool // Locker Room is on the battlefield with both doors unlocked, its names are Bottomless Pool and Locker Room, its mana value is 6, it's a Room Enchantment, and it has the abilities in each door's text box
A 5-mana 7/3 with Trample is probably something youd play more often than not, especially in a set with lots of Pack Tactics, since he can trigger it all on his own, but what really makes Zalto powerful is the fact that in most cases your opponent will have to at least give you the value of Venturing into the Dungeon once
Panoptic Mirror is an awesome five mana artifact that can exile a spell from your hand