Delvefall
Serum Powder

Serum Powder {3}

Artifact

{T}: Add {C}.
Any time you could mulligan and this card is in your hand, you may exile all the cards from your hand, then draw that many cards. (You can do this in addition to taking mulligans.)

click a line to search just that ability, click more to combine them

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?

Force of Negation
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"If it's not your turn, you may exile a blue card from your hand rather than pay this spell's mana cost."
Force of Despair
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$8.27#2417
"If it's not your turn, you may exile a black card from your hand rather than pay this spell's mana cost."
Search the City
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$0.13#30283
"Whenever you play a card with the same name as one of the exiled cards, you may put one of those cards with that name into its owner's hand. Then if there are no cards exiled with this enchantment, sacrifice it. If you do, take an extra turn after this one."
Thought Vessel
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"{T}: Add {C}."
Training Compound
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"{T}: Add {C}."
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"{T}: Add {C}."
Cavernous Maw
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"{T}: Add {C}."
Fountainport
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"{T}: Add {C}."
Obsidian Obelisk
Obsidian Obelisk 100%
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"{T}: Add {C}."
Inventors' Fair
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"{T}: Add {C}."
Bucolic Ranch
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"{T}: Add {C}."
Shrine of the Forsaken Gods
Shrine of the Forsaken Gods 100%
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"{T}: Add {C}."
Riftstone Portal
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"{T}: Add {C}."
Rath's Edge
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"{T}: Add {C}."
Sandstorm Verge
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"{T}: Add {C}."
Flooded Grove
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"{T}: Add {C}."
Twilight Mire
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"{T}: Add {C}."
Blighted Steppe
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"{T}: Add {C}."
Three Tree City
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"{T}: Add {C}."
Jasmine Dragon Tea Shop
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"{T}: Add {C}."