The Fool: 0

Destiny (Whenever you cast and arcana card the following ability triggers)- Put a +1/+1 counter on The Fool: 0 it becomes a creature with base power 0/0 in addition to its other types until your next upkeep.

Whenever you play a Major Arcana card you may search your deck for an Arcana card with lesser mana value, reveal it, shuffle your library then put that card on top.

The Fool: 0 can be your commander.