Arcane Foundry › Commanders › Deekah, Fractal Theorist
Deekah, Fractal Theorist
Legendary Creature — Human Wizard · {4}{U} · Blue commander
Magecraft — Whenever you cast or copy an instant or sorcery spell, create a 0/0 green and blue Fractal creature token. Put X +1/+1 counters on it, where X is that spell's mana value.
{3}{U}: Target creature token can't be blocked this turn.
Build a Deekah, Fractal Theorist deck →
What Deekah, Fractal Theorist actually does
Read off the card by the same engine the Forge and Analyzer use — this is the mechanical classification, not a summary.
- Triggered ability · cast_spellWhenever you cast or copy an instant or sorcery spell, create a 0/0 green and blue Fractal creature token. Put X +1/+1 counters on it, where X is that spell's mana value.
- Activated ability{3}{U}: Target creature token can't be blocked this turn.
- Keyword · magecraftmagecraft
What a Deekah, Fractal Theorist deck wants
The plan the Forge derives for this commander: the roles it fills and how many of each.
- 20× A card that is CAST to trigger the commander — reanimating or blinking it does not count
- 22× Instants and sorceries — for a magecraft/prowess commander the spell COUNT is the engine
- 4× A team pump that actually pumps tokens
- 14× Put +1/+1 counters on creatures you control, or multiply the ones already there
- 12× Make creature tokens — a static anthem or a go-wide commander needs a board to be wide
- 5× Actually remove one problem permanent — preventing its damage is not removing it
- 1× Answer a whole board at once
- 2× Answer a spell or ability before it resolves
- 9× Find the exact card the plan needs
Best cards for Deekah, Fractal Theorist
Ranked by an engine that reads what each card does — its real cost, its delay and how reliably it works — rather than counting how often other people play it.
A card that is CAST to trigger the commander — reanimating or blinking it does not count
- Pact of Negation0 mana
- An Offer You Can't Refuse1 mana
- Brainstorm1 mana
- Mystical Tutor1 mana
- Opt1 mana
- Ponder1 mana
- Pongify1 mana
- Preordain1 mana
Instants and sorceries — for a magecraft/prowess commander the spell COUNT is the engine
- Pact of Negation0 mana
- An Offer You Can't Refuse1 mana
- Brainstorm1 mana
- Mystical Tutor1 mana
- Opt1 mana
- Ponder1 mana
- Pongify1 mana
- Preordain1 mana
A team pump that actually pumps tokens
- Nesting Grounds0 mana
- Patchwork Banner3 mana
- Crashing Drawbridge2 mana
- Eldritch Immunity1 mana
- Shore Up1 mana
- Heraldic Banner3 mana
- Agatha's Soul Cauldron2 mana
- Cyberman Patrol2 mana
Put +1/+1 counters on creatures you control, or multiply the ones already there
- Karn's Bastion0 mana
- Ripples of Potential2 mana
- Thrummingbird2 mana
- Contagion Clasp2 mana
- Contentious Plan2 mana
- Experimental Augury2 mana
- Tezzeret's Gambit4 mana
- Dreamtide Whale3 mana
Make creature tokens — a static anthem or a go-wide commander needs a board to be wide
- Chasm Skulker3 mana
- Kozilek's Unsealing3 mana
- Trendy Circus Pirate0 mana
- Myr Battlesphere7 mana
- Andúril, Flame of the West3 mana
- Invasion of Segovia // Caetus, Sea Tyrant of Segovia3 mana
- Field of the Dead0 mana
- Spawnbed Protector7 mana
Actually remove one problem permanent — preventing its damage is not removing it
- Reality Shift2 mana
- Pongify1 mana
- Rapid Hybridization1 mana
- Resculpt2 mana
- Suspend1 mana
- Snap2 mana
- Into the Flood Maw1 mana
- Planar Incision2 mana
Answer a whole board at once
- Thing in the Ice // Awoken Horror2 mana
- Displacement Wave2 mana
- Filter Out3 mana
- Aligned Hedron Network4 mana
- Coercive Portal4 mana
- Whelming Wave4 mana
- Consuming Tide4 mana
- Llawan, Cephalid Empress4 mana
Answer a spell or ability before it resolves
- Pact of Negation0 mana
- Counterspell2 mana
- Three Steps Ahead1 mana
- Long River's Pull2 mana
- Force of Will5 mana
- Abjure1 mana
- Archmage's Charm3 mana
- Cancel3 mana
Find the exact card the plan needs
- Reshape2 mana
- Mask of the Mimic1 mana
- Long-Term Plans3 mana
- Whir of Invention3 mana
- Merchant Scroll2 mana
- Mystical Tutor1 mana
- Muddle the Mixture2 mana
- Personal Tutor1 mana