Cast Crafty Cutpurse by paying {3}{U}.
Crafty Cutpurse enters the battlefield, causing all tokens that would be created under an opponent's control this turn to be created under your control instead.
Activate Phelddagrif's first ability by paying {G}, causing Phelddagrif to gain trample until end of turn and creating a 1/1 Hippo creature token.
Activate Phyrexian Altar by sacrificing the Hippo token, adding {G}.
Repeat from step 3.

Infinite death triggers

Infinite ETB

Infinite LTB

Infinite sacrifice triggers

Phelddagrif

Crafty Cutpurse

Phyrexian Altar

Cast Crafty Cutpurse by paying {3}{U}.
Crafty Cutpurse enters the battlefield, causing all tokens that would be created under an opponent's control this turn to be created under your control instead.
Activate Questing Phelddagrif's first ability by paying {G}, causing Questing Phelddagrif to get +1/+1 until end of turn and creating a 1/1 Hippo creature token.
Activate Phyrexian Altar by sacrificing the Hippo token, adding {G}.
Repeat from step 3.

Infinitely large creature until end of turn

Questing Phelddagrif

Cast Crafty Cutpurse by paying {3}{U}.
Crafty Cutpurse enters the battlefield, causing all tokens that would be created under an opponent's control this turn to be created under you control instead.
Cast Fractured Identity by paying {3}{W}{U}, targeting any permanent.
Holding priority, cast Dualcaster Mage by paying {1}{R}{R}.
Dualcaster Mage enters the battlefield, creating a copy of Fractured Identity, targeting Dualcaster Mage.
Resolve the copy of Fractured Identity, exiling Dualcaster Mage and creating a copy of Dualcaster Mage for each opponent you have.
The Dualcaster Mage token(s) enter the battlefield, creating a copy of Fractured Identity targeting Dualcaster Mage, and any other instants and/or sorceries on the stack.
Repeat from step 6.
You may also have the additional triggers target permanents your opponent control to exile them and create token copies of them.

Infinite copies of all nonland permanents

Infinite creature tokens

Infinite magecraft triggers

Infinite copies of instant and sorcery spells on the stack

Exile all nonland permanents opponents control

Fractured Identity

Dualcaster Mage

Cast Crafty Cutpurse by paying {3}{U}.
Crafty Cutpurse enters the battlefield, causing all tokens that would be created under an opponent's control this turn to be created under you control instead.
Cast Fractured Identity by paying {3}{W}{U}, targeting any permanent.
Holding priority, cast Naru Meha by paying {2}{U}{U}.
Naru Meha enters the battlefield, creating a copy of Fractured Identity, targeting Naru Meha.
Resolve the copy of Fractured Identity, exiling Naru Meha and creating a copy of Naru Meha for each opponent you have.
Put all but one Naru Meha token into your graveyard due to the legend rule.
The Naru Meha token(s) enter the battlefield, creating a copy of Fractured Identity targeting Naru Meha, and any other instants and/or sorceries on the stack.
Repeat from step 6.
You may also have the additional triggers target permanents your opponent control to exile them and create token copies of them.

Naru Meha, Master Wizard

Cast Crafty Cutpurse by paying {3}{U}.
When Crafty Cutpurse enters the battlefield, it triggers, causing all tokens that would be created under an opponent's control to be created under your control instead.
Activate Forbidden Orchard by tapping it, adding one mana of any color.
Forbidden Orchard triggers, causing you to create a 1/1 Spirit creature token.
Activate Earthcraft by tapping the Spirit, untapping Forbidden Orchard.
Repeat from step 3.

Infinite colored mana

Infinite tapped creature tokens

Forbidden Orchard

Rootpath Purifier

Earthcraft

Cast Crafty Cutpurse by paying {3}{U}.
Crafty Cutpurse enters the battlefield, causing all tokens that would be created under an opponent's control this turn to be created under your control instead.
Activate Vazi by tapping it, creating at least two Treasure tokens.
Activate a Treasure token by tapping and sacrificing it, adding {U}.
Activate Pemmin's Aura's first ability by paying {U}, untapping Vazi.
Repeat from step 3.

Infinite Treasure tokens

Vazi, Keen Negotiator

Pemmin's Aura

Cast Crafty Cutpurse by paying {3}{U}.
Crafty Cutpurse enters the battlefield, causing all tokens that would be created under an opponent's control this turn to be created under your control instead.
Activate Vazi by tapping it, creating at least two Treasure tokens.
Activate a Treasure token by tapping and sacrificing it, adding {U}.
Activate Freed from the Real's second ability by paying {U}, untapping Vazi.
Repeat from step 3.

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