🗿 notawikiAcross the Obelisk Codex · the answer, not the article

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1Deja Vu
Healer · Mind spell · Spell
Shuffle 1 Deja Vu into your deck. Deal 2 Mind +X Mind. Apply X Insane. (X equals your vanish pile size x0.5).
Rare▸ Monster
Upgrade paths
Upgrade A (yellow) · Rare · cost 1
Place 2 Deja Vu [Yellow] on your discard pile. Deal 2 Mind +X Mind. Apply X Insane. (X equals your vanish pile size).
Upgrade B (blue) · Rare · cost 1
Shuffle 1 Deja Vu [Blue] into your deck. Deal 2 Mind +X Mind. Apply X Insane. (X equals your vanish pile size).
Corrupted (purple) · Rare · cost 1
Shuffle 2 Deja Vu [Corrupted] into your deck. Deal 3 Mind +X Mind. Apply X Insane. (X equals your vanish pile size).