Activate Basalt Monolith's first ability by tapping it, adding {3}.
Activate Basalt Monolith's second ability by paying {3}, untapping it.
Wake Thrasher triggers, giving it +1/+1 until end of turn.
Repeat.

Infinitely large creature until end of turn

Wake Thrasher

Basalt Monolith

Activate Aphetto Alchemist by tapping it, untapping itself.
Wake Thrasher triggers, getting +1/+1 until end of turn.
Repeat.

Infinite power and toughness for a creature until end of turn

Aphetto Alchemist

Cast Machine God's Effigy by paying {4}, choosing to have it enter the battlefield as a copy of Horseshoe Crab that is an artifact.
Activate Machine God's Effigy by tapping it, adding {U}.
Activate Machine God's Effigy by paying {U}, untapping it.
Wake Thrasher triggers, giving itself +1/+1 until end of turn.
Repeat from step 2.

Infinitely large Wake Thrasher until end of turn

Machine God's Effigy

Horseshoe Crab

Activate Seeker of Skybreak by tapping it, untapping itself.
Wake Thrasher triggers, giving itself +1/+1 until end of turn.
Repeat.

Seeker of Skybreak

Declare Ith as an attacker.
Activate Ith by tapping it, untapping Ith and preventing all combat damage that would be dealt to or dealt by it this turn.
Wake Thrasher triggers, giving itself +1/+1 until end of turn.
Repeat from step 2.

Ith, High Arcanist

Activate Urza's first ability by tapping the creature with Freed from the Real attached, adding {U}.
Activate Freed from the Real by paying {U}, untapping the creature it is attached to.
Wake Thrasher triggers, giving itself +1/+1 until end of turn.
Repeat.

Urza, Lord High Artificer

Freed from the Real

Activate Soliton by tapping it, adding {U}.
Activate Soliton by paying {U}, untapping it.
Wake Thrasher triggers, causing it to get +1/+1 until end of turn.
Repeat.

Soliton

Paradise Mantle

Cast Machine God's Effigy by paying {4}, choosing to have it enter the battlefield as a copy of Morphling that is an artifact.
Activate Machine God's Effigy by tapping it, adding {U}.
Activate Machine God's Effigy by paying {U}, untapping it.
Wake Thrasher triggers, giving itself +1/+1 until end of turn.
Repeat from step 2.

Morphling

Cryptolith Rite

Activate Urza's first ability by tapping Soliton, adding {U}.
Activate Soliton by paying {U}, untapping it.
Wake Thrasher triggers, giving itself +1/+1 until end of turn.
Repeat.

Cast Machine God's Effigy by paying {4}, choosing to have it enter the battlefield as a copy of Soliton that is an artifact.
Activate Machine God's Effigy by tapping it, adding {U}.
Activate Machine God's Effigy by paying {U}, untapping it.
Wake Thrasher triggers, giving itself +1/+1 until end of turn.
Repeat from step 2.

Tap Arbor Elf to untap itself.
Wake Thrasher gets +1/+1.
Repeat.

Arbor Elf

Ashaya, Soul of the Wild

Activate Earthcraft by tapping Dryad Arbor, untapping Dryad Arbor.
Wake Thrasher triggers, giving it +1/+1 until end of turn.
Repeat.

Rootpath Purifier

Dryad Arbor

Earthcraft

Pay {1}{G} to Kamahl, targeting the basic land.
Tap the basic land with Earthcraft, untapping itself.
Wake Thrasher triggers getting +1/+1 until end of turn.
Repeat.

Kamahl, Heart of Krosa

Pay {G} to Kamahl, targeting the basic land.
Tap the basic land with Earthcraft, untapping itself.
Wake Thrasher triggers getting +1/+1 until end of turn.
Repeat.

Kamahl, Fist of Krosa

Pay {G} and sacrifice Lifespark Spellbomb, targeting the basic land.
Tap the basic land with Earthcraft, untapping itself.
Wake Thrasher triggers getting +1/+1 until end of turn.
Repeat.

Lifespark Spellbomb

Equip Paradise Mantle onto Torchling.
Tap Torchling to add {R}.
Spend that mana to untap Torchling, Wake Thrasher gets +1/+1.
Repeat.

Combos with "Wake Thrasher"