Seedcradle Witch, Bloom Tender, and Scrapbasket

Prerequisites

• Seedcradle Witch on the battlefield
• Bloom Tender on the battlefield
• Scrapbasket on the battlefield
• Bloom Tender does not have summoning sickness
• available

Steps

1. Activate Scrapbasket by paying , making it all colors until end of turn
2. Activate Bloom Tender by tapping it, adding
3. Activate Seedcradle Witch by paying , giving Bloom Tender +3/+3 until end of turn and untapping it
4. Repeat from step 2

Results

• Infinite black mana
• Infinite blue mana
• Infinitely large Bloom Tender until end of turn
• Infinite red mana