Activate Quicksilver Elemental by paying {U}, causing it to gain Vivi's activated abilities until end of turn.
Activate Quicksilver Elemental using Vivi's ability by paying {0}, adding {U}{U/R}{U/R}.
Repeat.

Infinite red mana

Infinite blue mana

Infinite colored mana that can only be spent to activate abilities

Vivi Ornitier

Quicksilver Elemental

Activate Vivi by paying {0}, adding at least {U}{U}.
Activate Vivi by paying {1}{U}, blinking it.
When Vivi enters the battlefield, Deadeye Navigator's soulbond ability triggers, repairing it and Vivi.
Repeat.

Infinite LTB

Infinite ETB

Infinite blinking

Deadeye Navigator

Cast Haze of Rage with buyback by paying {3}{R}.
Displacer Kitten, Vivi and Haze of Rage's storm ability trigger.
Resolve the Vivi trigger, putting a +1/+1 counter on it and dealing 1 damage to each opponent.
Holding priority, activate Vivi by paying {0}, adding at least {3}{R}.
Resolve the Displacer Kitten trigger, blinking Vivi.
When Vivi enters the battlefield, Hero's Blade triggers, attaching Hero's Blade to Vivi.
Resolve the Haze of Rage trigger, copying it for each spell cast before it this turn.
Resolve all Haze of Rages, returning the original Haze of Rage to your hand.
Repeat.

Infinite damage

Infinite storm count

Infinite magecraft triggers

Infinite power for creatures you control until end of turn

Hero's Blade

Displacer Kitten

Haze of Rage

Activate Vivi by paying {0}, adding at least {U/R}{U/R}{U/R}.
Activate Emiel by paying {3}, blinking Vivi.
Repeat.

Emiel the Blessed

If able, activate Vivi by paying {0}, adding at least {2}.
Activate Ashnod's Altar by sacrificing Vivi, adding {C}{C}.
When Vivi dies, Nim Deathmantle triggers, causing you to pay {4} to return Vivi from your graveyard to the battlefield, and attach Nim Deathmantle to it.
Repeat.

Infinite sacrifice triggers

Infinite death triggers

Nim Deathmantle

Ashnod's Altar

Cast Haze of Rage with buyback by paying {3}{R}.
Geralf and Haze of Rage's storm ability trigger.
Resolve the Geralf trigger, creating a 2/2 Zombie Rogue creature token.
When the Zombie Rogue enters the battlefield, Geralf's second ability triggers, putting a +1/+1 counter on the Zombie Rogue for each other Zombie that entered the battlefield under your control this turn.
Resolve the Haze of Rage trigger, copying it for each spell cast before it this turn.
Resolve all Haze of Rage spells, giving creatures you control +1/+0 for each spell and returning the original Haze of Rage to your hand.
Activate the Zombie Rogue using Vivi's ability by paying {0}, adding an amount of {R} equal to its power.
Repeat.

Infinite +1/+1 counters on an infinite number of creature tokens

Agatha's Soul Cauldron

Geralf, the Fleshwright

Combos with "Vivi Ornitier"