Spelljack
Bonus Round
1

   Prerequisites

What do I need to start this combo?
Spelljack and Bonus Round in hand.
You have an additional instant card in hand.
4 plus enough mana to cast the additional instant card available

   Steps

How does this combo work?
1
Cast Bonus Round by paying 1, causing you to copy any instant and/or sorcery spell you cast this turn.
2
Cast any other instant card from your hand by paying its mana cost.
3
Bonus Round triggers, copying the instant.
4
Holding priority, cast Spelljack by paying 3, targeting the instant.
5
Bonus Round triggers, creating a copy of Spelljack that is targeting the original Spelljack.
6
Resolve the copy of Spelljack, countering the original Spelljack and exiling it with the ability to cast it for free from exile.
7
Cast Spelljack from exile without paying its mana cost, targeting the instant cast in step 1.
8
Repeat from step 5.

   Results

What do I get from this combo?
Infinite magecraft triggers
Infinite storm count
Mizzix of the Izmagnus
0.04% of 5125 decks 2 decks
Alania, Divergent Storm
0.04% of 5595 decks 2 decks
Okaun, Eye of Chaos // Zndrsplt, Eye of Wisdom
0.01% of 6924 decks 1 decks
The Twelfth Doctor // K-9, Mark I
5.26% of 19 decks 1 decks
Tibor and Lumia
0.26% of 380 decks 1 decks
Krark, the Thumbless // Kydele, Chosen of Kruphix
0.24% of 425 decks 1 decks
The Twelfth Doctor // Martha Jones
33.33% of 3 decks 1 decks
Galazeth Prismari
0.03% of 3923 decks 1 decks
Narset, Enlightened Master
0.02% of 5893 decks 1 decks
Zaffai, Thunder Conductor
0.07% of 1429 decks 1 decks
Melek, Reforged Researcher
0.05% of 1865 decks 1 decks
Kess, Dissident Mage
0.01% of 7222 decks 1 decks
High Synergy Cards
Thousand-Year Storm
79% of 14 decks +74% synergy
Storm-Kiln Artist
64% of 14 decks +55% synergy
Reliquary Tower
71% of 14 decks +42% synergy
Crackle with Power
36% of 14 decks +33% synergy
Brass's Bounty
36% of 14 decks +33% synergy
Ral, Storm Conduit
36% of 14 decks +33% synergy
Harmonic Prodigy
36% of 14 decks +32% synergy
Ponder
43% of 14 decks +31% synergy
Brainstorm
50% of 14 decks +30% synergy
Twinning Staff
29% of 14 decks +28% synergy
Top Cards
Chaos Warp
50% of 14 decks +19% synergy
Blasphemous Act
43% of 14 decks +10% synergy
Counterspell
43% of 14 decks +1% synergy
Arcane Denial
36% of 14 decks +16% synergy
Spell Swindle
29% of 14 decks +27% synergy
Jaya's Immolating Inferno
29% of 14 decks +27% synergy
Comet Storm
29% of 14 decks +26% synergy
Baral, Chief of Compliance
29% of 14 decks +26% synergy
Young Pyromancer
29% of 14 decks +24% synergy
Seething Song
29% of 14 decks +23% synergy
Game Changers
Mystical Tutor
57% of 14 decks +43% synergy
Cyclonic Rift
50% of 14 decks +24% synergy
Rhystic Study
29% of 14 decks +2% synergy
Jeska's Will
21% of 14 decks +5% synergy
Creatures
Niv-Mizzet, Parun
29% of 14 decks +21% synergy
Melek, Izzet Paragon
21% of 14 decks +20% synergy
Veyran, Voice of Duality
21% of 14 decks +16% synergy
Archmage Emeritus
21% of 14 decks +14% synergy
Instants
Fact or Fiction
29% of 14 decks +23% synergy
Reality Shift
29% of 14 decks +20% synergy
Big Score
29% of 14 decks +20% synergy
Lightning Bolt
29% of 14 decks +18% synergy
Frantic Search
29% of 14 decks +16% synergy
Gale's Redirection
21% of 14 decks +21% synergy
Twincast
21% of 14 decks +21% synergy
Chemister's Insight
21% of 14 decks +21% synergy
Storm King's Thunder
21% of 14 decks +21% synergy
Wild Ricochet
21% of 14 decks +20% synergy
Increasing Vengeance
21% of 14 decks +20% synergy
Reiterate
21% of 14 decks +20% synergy
Impulse
21% of 14 decks +20% synergy
Electrodominance
21% of 14 decks +20% synergy
Expansion // Explosion
21% of 14 decks +19% synergy
Rewind
21% of 14 decks +18% synergy
Narset's Reversal
21% of 14 decks +18% synergy
Dig Through Time
21% of 14 decks +17% synergy
Izzet Charm
21% of 14 decks +16% synergy
Unexpected Windfall
21% of 14 decks +15% synergy
Opt
21% of 14 decks +12% synergy
Pongify
21% of 14 decks +10% synergy
Negate
21% of 14 decks -1% synergy
Sorceries
Vandalblast
29% of 14 decks +13% synergy
Finale of Promise
21% of 14 decks +21% synergy
Fireball
21% of 14 decks +21% synergy
Apex of Power
21% of 14 decks +21% synergy
Mind's Desire
21% of 14 decks +20% synergy
Epic Experiment
21% of 14 decks +20% synergy
Deep Analysis
21% of 14 decks +19% synergy
Mizzix's Mastery
21% of 14 decks +18% synergy
Gitaxian Probe
21% of 14 decks +16% synergy
Mana Geyser
21% of 14 decks +15% synergy
Expressive Iteration
21% of 14 decks +15% synergy
Faithless Looting
21% of 14 decks +5% synergy
Utility Artifacts
Primal Amulet
21% of 14 decks +20% synergy
Enchantments
Swarm Intelligence
21% of 14 decks +20% synergy
Mana Artifacts
Sol Ring
79% of 14 decks -6% synergy
Arcane Signet
71% of 14 decks -1% synergy
Izzet Signet
57% of 14 decks +30% synergy
Talisman of Creativity
50% of 14 decks +21% synergy
Thought Vessel
29% of 14 decks +11% synergy
Gilded Lotus
21% of 14 decks +18% synergy
Chromatic Lantern
21% of 14 decks +12% synergy
Fellwar Stone
21% of 14 decks +0% synergy
Lands
Command Tower
86% of 14 decks +11% synergy
Sulfur Falls
71% of 14 decks +39% synergy
Cascade Bluffs
43% of 14 decks +30% synergy
Izzet Boilerworks
43% of 14 decks +27% synergy
Training Center
43% of 14 decks +16% synergy
Shivan Reef
43% of 14 decks +15% synergy
Steam Vents
43% of 14 decks +5% synergy
Temple of Epiphany
36% of 14 decks +17% synergy
Scalding Tarn
29% of 14 decks +18% synergy
Exotic Orchard
29% of 14 decks -8% synergy
Frostboil Snarl
21% of 14 decks +7% synergy
Stormcarved Coast
21% of 14 decks +3% synergy