These cards proved great with cycling because they allowed you to put them into your deck
Withering Torment is a step towards more flexible interaction, but far from an excellent answer
Be'lakor was the first Daemon Prince the Ruinous Powers brought back, and he's first in our hearts as Magic 's greatest Demon lord

Ancient Silverback Arborback Stomper Back for More Back for Seconds Back from the Brink Back in Town Back on Track Back to Basics Back to Nature Back-Alley Gardener Backdraft Backdraft Hellkite Backfire Backlash Backslide Backstreet Bruiser Backup Agent Backup Plan Backwoods Survivalists Barbed-Back Wurm Beetleback Chief Bladeback Sliver Borough Backup Brambleback Brute Bristling Backwoods Brought Back Burdened Stoneback Casey Jones, Back Alley Brute Chaotic Backlash Charging Slateback Come Back Wrong Daggerback Basilisk Dismal Backwater Dragonback Assault Dragonback Lancer Essence Backlash Feedback Feedback Bolt Feral Throwback Flashback Gnarlback Rhino Granny's Payback Green Goblin, Back for More Grim Backwoods Gristleback Hamletback Goliath Hangarback Walker Isleback Spawn Lathnu Sailback Leatherback Baloth Marketback Walker Nurturing Bristleback Orazca Frillback Parallectric Feedback Phantasmal Shieldback Ponyback Brigade Pygmy Razorback Rattleback Apothecary Ravenous Sailback Rubbleback Rhino Saddleback Lagac Sangrite Backlash Sawback Manticore Scuzzback Marauders Scuzzback Scrapper Scuzzback Scrounger Shadowy Backstreet Shamble Back Silverback Ape Silverback Elder Silverback Shaman Skyshroud Ridgeback

Costing just three ink - with the option to add it to your inkwell instead - Cheshire Cat, Not All There focuses entirely on questing, with zero strength but two precious lore points every time you quest
In the last case, the chaos ability can trigger even if that plane card is still in the planar deck but revealed