Crackdown Construct, Song of Freyalise, and Soliton

Prerequisites

• Crackdown Construct on the battlefield
• Song of Freyalise on the battlefield
• Soliton on the battlefield
• Soliton does not have summoning sickness
• Song of Freyalise has one or two lore counters on it

Steps

1. Activate Soliton by tapping it, adding
2. Activate Soliton by paying
3. Crackdown Construct triggers, giving itself +1/+1 until end of turn
4. Resolve the Soliton ability, untapping it
5. Repeat

Results

• Infinitely large Crackdown Construct until end of turn