LIGHT
4Libromancer Mystigirl
Archetype:
Libromancer
ATK:
1400
DEF:
2100
View:
4133
You can Ritual Summon this card with a "Libromancer" card. If this card was Ritual Summoned by using a monster(s) on the field, your opponent cannot target Ritual Monsters you control with monster effects. If this card is Special Summoned: You can target 1 face-up monster your opponent controls; until the end of this turn, change its ATK to 0, also negate its effects. You can only use this effect of "Libromancer Mystigirl" once per turn.
Libromancer Mystigirl — Power Evaluation
Final Score: 56 ± 8 · Confidence: Medium
- Intrinsic: 52 · Deck: 58 · Meta: provisional
- Primary role: Removal / Negation · Secondary: Material body
Why it scores here
Libromancer Mystigirl is a Level 4 LIGHT Fairy Ritual monster whose value is one once-per-turn effect: when Special Summoned, it sets an opposing monster's ATK to 0 and negates it, plus a conditional protection against monster-effect targeting of Ritual monsters you control. It is played in nearly every sampled Libromancer deck, which confirms it is a real, practical piece, but that inclusion rate is not what earns points. With no recorded combos and no card advantage on the card, resource economy and combo conversion score low. The score is mainly the single negate, held back by its dependence on the Libromancer Ritual route and the lack of combo data.
Axis scores
| Axis | Score | Evidence |
|---|---|---|
| Accessibility | 62 | Appears in 260 of 260 sampled decks, with 1.21 copies on average, but it needs a Libromancer Ritual Summon route to reach the field (observed, inferred). |
| Combo & Conversion | 40 | No combo boards are recorded, so conversion rests on the text alone: one targeted negate and ATK reduction, with no extra bodies or board build (inferred). |
| Resource Economy | 30 | No card advantage, search, or recursion is stated in the text, and no combo evidence shows refuel (verified). |
| Effect & Interaction | 58 | Once-per-turn negate with ATK-to-0 on a face-up opposing monster, gated by a Special Summon, plus targeting protection for Ritual monsters when summoned from the field (verified). |
| Material Utility | 45 | Level 4 LIGHT Fairy body that can be Ritual Summoned, but no material use is recorded and its value as material is an inference (inferred). |
| Resilience & Flexibility | 50 | The negate is a single-use board effect that can be stopped by a response, and the protection clause is conditional on how it was summoned (inferred). |
| Deck-Building Efficiency | 55 | Usually run as one copy (218 of 260 decks) with no garnet or lock restriction, but it needs the Libromancer Ritual route in the deck (observed, inferred). |
Calculation
Weight profile: 0.7 Removal / Negation + 0.3 Material body. Intrinsic ≈ 52, Deck ≈ 58, Meta = provisional. Modifiers: none. Final formula: 0.40*Intrinsic + 0.60*Deck
Strengths
- Playable in almost every sampled Libromancer deck, so it is reliably accessible in that archetype
- One-copy, once-per-turn negate with ATK reduction that answers a single opposing monster
- Targeting protection for Ritual monsters you control when summoned from the field
Weaknesses
- Needs a Special Summon, which depends on the Libromancer Ritual route
- No recorded combos, so its conversion into a larger board is unproven
- No card advantage, search, or recursion in the text
- Only one effect target per turn, so it does little against multi-monster boards
Counters / choke points
- Opponent monster-effect negation or response in the chain, since the trigger is a single once-per-turn effect
- Board-wide effect negation that removes the summoned body before the effect resolves
Best use
Single-target negate that protects Ritual monsters from monster-effect targeting. Decks: Libromancer (Ritual / field-ritual builds). Suggested copies: 1.
Evidence & gaps
- Verified: Ritual Summon requires a Libromancer card; the card can be targeted only if it is not protected by the Ritual clause; Once per turn, a Special Summoned copy can change a face-up opposing monster's ATK to 0 and negate its effects; 260 of 260 sampled decks run the card, averaging 1.21 copies
- Observed: Libromancer decks use it across 35 distinct archetypes, though most are Libromancer variants; Top partners are Libromancer staples present in 56 to 96 percent of decks
- Inferred: Its practical value comes from a single negate rather than board generation; Being Ritual Summoned from the field is a realistic way to trigger the protection clause
- Data gaps: no combos supplied, so combo conversion is text-only inference no banlist token, so 3 copies (unlimited) is assumed no rulings in the evidence for the Ritual protection clause no meta sample supplied, so meta power is null