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Invasion of Arcavios // Invocation of the Founders

Battle — Siege // Enchantment

(As a Siege enters, choose an opponent to protect it. You and others can attack it. When it's defeated, exile it, then cast it transformed.)
When this Siege enters, search your library, graveyard, and/or outside the game for an instant or sorcery card you own, reveal it, and put it into your hand. If you search your library this way, shuffle.

CMC
5
Mana cost
{3}{U}{U}
Color identity
U
Rarity
rare
Set
March of the Machine
Price
$0.32
EDHREC rank
#9992
Buy on TCGplayer
Invasion of Arcavios // Invocation of the Founders card art
Invasion of Arcavios // Invocation of the Founders tutors any instant or sorcery from your library directly to hand for five mana, then flips into a static enchantment that copies every instant and sorcery you cast — that back half is the reason you're here. The cost is real: six defense means it needs a dedicated shell to survive long enough to flip, and commanders like Heliod, the Radiant Dawn // Heliod, the Warped Eclipse that convert the battle into a free spell-doubler are doing the heavy lifting.

Format Analysis

Where it lives, where it can’t

FormatVerdict
commander legal
legacy legal
modern legal
pioneer legal
standard not legal
vintage legal
pauper not legal
oathbreaker legal

Commander is where Invasion of Arcavios // Invocation of the Founders does its best work — the tutor on entry finds a combo piece or a board wipe, and if opponents can't close it out quickly, the enchantment side turns every subsequent spell into a two-for-one. Outside Commander, the card sees essentially no play: five mana for a conditional tutor is too slow for Pioneer, Modern, or Legacy, where the battle's six defense is a liability rather than a threat. Oathbreaker could theoretically support it in spell-heavy builds, but the format's compressed game length makes flipping the battle an optimistic ask.

Key Combos

Combo lines featuring this card

Price Context

Current price

$0.32 bulk tier

At $0.32, Invasion of Arcavios // Invocation of the Founders is firmly bulk — you're getting a lot of text for almost nothing. The price reflects its narrow home rather than its power level; in the right spell-heavy Commander shell it punches well above its cost, and there's little reason to expect significant movement given its limited cross-format appeal.

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Sources

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Updated . Data from Scryfall, EDHREC, and Commander Spellbook.