Delvefall
Firemind's Research

Firemind's Research {U}{R}

Enchantment

Whenever you cast an instant or sorcery spell, put a charge counter on this enchantment.
{1}{U}, Remove two charge counters from this enchantment: Draw a card.
{1}{R}, Remove five charge counters from this enchantment: It deals 5 damage to any target.

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extra filters

color identity, fits-within like deckbuilding: tick W and U and only white, blue, white-blue and colorless cards show. in the filter box: id:wu (or -id:rg to ban colors), or id:c for colorless only

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price bounds, in the currency picked below. cards with no listed price are hidden by any price filter. in the filter box: usd<=5, eur>=1

the currency every price shows, filters and sorts in. it applies itself and the site remembers it. in the filter box usd and eur always mean themselves, a bare price<5 follows this switch

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mana value bounds (converted mana cost). in the filter box: mv<=2, cmc>=4, both spellings work

the card's type line must contain this. the filter box takes any word, not just the list: t:legendary, t:aura, or -t:creature to exclude one

only legendary creatures, the cards that can lead a commander deck

hides cards on the official game changer list, for lower-powered brackets

cards that aren't legal in commander (banned and such) stay hidden unless this is on

Cards that do something similar expected a card that isn't here?

Adaptive Training Post
Adaptive Training Post 88%
$0.24#8625
"Whenever you cast an instant or sorcery spell, if this artifact has fewer than three charge counters on it, put a charge counter on it."
+1 more matching line
Geistflame Reservoir
Geistflame Reservoir 87%
$0.18#16934
"Whenever you cast an instant or sorcery spell, put a charge counter on this artifact."
+1 more matching line
Primal Amulet // Primal Wellspring
Primal Amulet // Primal Wellspring 86%
$13.51#2071
"Whenever you cast an instant or sorcery spell, put a charge counter on this artifact. Then if there are four or more charge counters on it, you may remove those counters and transform it."
Pyromancer Ascension
Pyromancer Ascension 86%
$0.28#11771
"Whenever you cast an instant or sorcery spell that has the same name as a card in your graveyard, you may put a quest counter on this enchantment."
Archmage of Runes
Archmage of Runes 85%
$2.90#1015
"Whenever you cast an instant or sorcery spell, draw a card."
Surrakar Spellblade
Surrakar Spellblade 83%
$0.32#16470
"Whenever you cast an instant or sorcery spell, you may put a charge counter on this creature."
Overmaster
Overmaster 83%
$2.99#3095
"The next instant or sorcery spell you cast this turn can't be countered."
Archmage Emeritus
Archmage Emeritus 83%
$0.51#258
"Whenever you cast or copy an instant or sorcery spell, draw a card."
Academy Wall
Academy Wall 83%
$0.27#13132
"Whenever you cast an instant or sorcery spell, you may draw a card. If you do, discard a card. This ability triggers only once each turn."
Niv-Mizzet, Parun
Niv-Mizzet, Parun 81%
$5.89#742
"Whenever a player casts an instant or sorcery spell, you draw a card."
Diary of Dreams
Diary of Dreams 80%
$0.21#11492
"Whenever you cast an instant or sorcery spell, put a page counter on this artifact."
Trail of Evidence
Trail of Evidence 80%
$0.31#9071
"Whenever you cast an instant or sorcery spell, investigate."