({2} magic symbol) ({R} magic symbol) ({G} magic symbol) plus commander tax if applicable available.
Steps
Play
Power Depot, which will enter with a +1/+1 counter on it due to its modular ability, increased by
High Score.
Cast
Toph either from your hand or from the command zone by paying ({2} magic symbol) ({R} magic symbol) ({G} magic symbol) plus commander tax if applicable.
When
Toph enters, it triggers, earthbending
Power Depot and putting a number of +1/+1 counters on
Power Depot equal to the mana spent to cast
Toph, increased by
High Score.
Activate
Altar of Dementia by sacrificing
Power Depot.
When
Power Depot dies, its modular ability and
Toph trigger.
Resolve the modular trigger, putting the +1/+1 counters that were on
Power Depot onto
Crystalline Crawler, increased by
High Score.
Resolve the
Toph trigger, returning
Power Depot from your graveyard to the battlefield tapped.
Power Depot will enter with two +1/+1 counters on it due to its modular ability and
High Score.
Resolve the
Altar of Dementia ability from step 4.
Activate
Altar of Dementia by sacrificing
Toph. Choose to return
Toph from your graveyard to the command zone.
Activate
Crystalline Crawler by removing a +1/+1 counter from it, adding ({RG} magic symbol) .