Orvar, the All-Form, Throne of Eldraine, Mystic Speculation, and Sakashima of a Thousand Faces

Prerequisites

• Orvar, the All-Form on the battlefield
• Throne of Eldraine on the battlefield
• Mystic Speculation in hand
• Sakashima of a Thousand Faces on the battlefield
• if Throne of Eldraine's chosen color is not "Blue"
• available

Steps

1. If able, activate Throne of Eldraine's first ability by tapping it, adding that can only be spent to cast blue monocolored spells
2. Cast Mystic Speculation with buyback by paying , targeting Throne of Eldraine
3. Orvar's first ability triggers, creating a copy of Throne of Eldraine
4. Choose "Blue" as its color as it enters the battlefield
5. Resolve Mystic Speculation, changing nothing and returning it to your hand
6. Repeat

Results

• Infinite ETB
• Infinite storm count
• Infinite creature tokens
• Infinite magecraft triggers
• Infinite landfall triggers
• Infinite copies of permanents you control
• Infinite colored mana that can only be spent to cast monocolored spells
• Infinite scry 3