Activate the creature with saddle's saddle ability by tapping Battered Golem.
Magda triggers, creating a Treasure token.
When the Treasure enters the battlefield, Battered Golem triggers, untapping Battered Golem.
Resolve the saddle ability.
Repeat.

Infinite colored mana

Infinite Treasure tokens

Put all artifact cards and a subset of creature cards from your library onto the battleifeld

Creature with Saddle 4 or less

Magda, Brazen Outlaw

Battered Golem

Maskwood Nexus

Activate the Vehicle's crew ability by tapping Battered Golem.
Magda triggers, creating a Treasure token.
When the Treasure enters the battlefield, Battered Golem triggers, untapping Battered Golem.
Resolve the crew ability.
Repeat.

Vehicle with Crew 4 or less

Activate Dwarven Bloodboiler by tapping Battered Golem.
Magda triggers, creating a Treasure artifact token.
When the Treasure enters the battlefield, Battered Golem triggers, untapping Battered Golem.
Resolve the Dwarven Bloodboiler ability, giving target creature +2/+0 until end of turn.
Repeat.

Infinitely powerful creatures you control until end of turn

Dwarven Bloodboiler

Pay {R} and tap Battered Golem to deal 1 damage to any target.
Magda triggers, creating a Treasure token.
Battered Golem triggers, untapping.
Sacrifice the Treasure token for {R}.
Repeat.

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