({1} magic symbol) ({G} magic symbol) ({GU} magic symbol) ({GU} magic symbol) ({U} magic symbol) plus enough mana to pay for commander tax, if applicable available.
Steps
Cast
Lonis either from your hand or from the command zone by paying ({1} magic symbol) ({GU} magic symbol) ({GU} magic symbol) plus commander tax, if applicable.
Holding priority, cast
Double Major by paying ({G} magic symbol) ({U} magic symbol) , creating a nonlegendary copy of the
Lonis spell.
Resolve both
Lonis spells.
Activate
Grinding Station by tapping it and sacrificing a Clue.
Lonis and the
Lonis token's second abilities trigger.
Resolve the nontoken
Lonis trigger, putting a +1/+1 counter on the token
Lonis.
The token
Lonis's first ability triggers, creating a Clue artifact token.
When the Clue enters the battlefield,
Grinding Station triggers, untapping
Grinding Station.
Resolve the token
Lonis's trigger from step 2, putting a +1/+1 counter on the nontoken
Lonis.
The nontoken
Lonis's first ability triggers, creating a Clue artifact token.
When the Clue enters the battlefield,
Grinding Station triggers, untapping
Grinding Station.
Resolve the
Grinding Station ability.
Repeat from step 4.
Notes
You may optionally target any other creature using one of the triggers to put infinite +1/+1 counters on that creature.