The plastic case can store up to 80 sleeved cards and protect them from damage.
Steels damage abilities make the banish choice highly valuable against Tamatoa and Mufasa in Sapphire, tricky Evasive or Bodyguard characters, or anything you just need gone
This can be a brutally punishing effect, easily dealing upwards of three to five points of damage in a turn
Interesting restrictions are often the key to finding top-level cards
Then, there are many cards that give you a benefit when you sacrifice a clue, like Tireless Tracker, so you should consider playing these alongside Lonis
You can play the lock combo of Karn, the Great Creator and Mycosynth Lattice for free, drop crazy stax pieces like God-Pharaoh's Statue or Wandering Archaic, or keep it simple by casting free eldrazi like Ulamog, the Ceaseless Hunger and Kozilek, Butcher of Truth