({5} magic symbol) ({U} magic symbol) ({U} magic symbol) ({U} magic symbol) plus enough mana to pay for commander tax, if applicable available.
Steps
Cast
Three Steps Ahead by paying ({U} magic symbol) plus another ({3} magic symbol) to select its second mode, targeting a creature you control.
Holding priority, cast
Naru Meha either from your hand or from the command zone by paying ({2} magic symbol) ({U} magic symbol) ({U} magic symbol) plus commander tax, if applicable.
When
Naru Meha enters the battlefield, it triggers, copying
Three Steps Ahead, targeting
Naru Meha.
Resolve the copy of
Three Steps Ahead, creating a token copy of
Naru Meha.
Put either
Naru Meha into your graveyard due to the legend rule.
Repeat from step 3.
Notes
If desired, you can spend an additional ({2} magic symbol) while casting
Three Steps Ahead to add its third mode, allowing you to draw your library and then discard half that many cards.