Being a Null Rod on a stick is perfect for creature based decks that want to make sure that opponents cannot cheat out creatures with staple artifacts like Aether Vial, Mishra's Bauble, and any form of equipment
if its been banned or restricted in an officially sanctioned Constructed format, Spike can get it for four black mana, 8 life or something inbetween
This guide focuses strictly on the earliest four English printings
All Treasure Making Discard to Draw Stuff There are a huge number of discard one, draw two, and then make Treasure tokens for future ramping and casting things that are great to add to your deck, especially in Highlander formats like Commander where you can run them all in the same deck
Grand Arbiter Augustin IV Here is a favorite of mine and one of the all-time popular commanders in Azorius, Grand Arbiter Augustin IV