Spell
FieldDrytron Fafnir
Archetype:
Drytron
View:
683
When this card is activated: You can add 1 "Drytron" Spell/Trap from your Deck to your hand, except "Drytron Fafnir". The activation and the activated effects of Ritual Spell Cards cannot be negated. Once per turn, if a monster is Normal or Special Summoned face-up while you control a "Drytron" monster (except during the Damage Step): You can reduce that monster's Level by 1 per 1000 of its current ATK (min. Level 1) for the rest of this turn. You can only activate 1 "Drytron Fafnir" per turn.
Drytron Fafnir — Power Evaluation
Final Score: 57 ± 6 · Confidence: Medium
- Intrinsic: 50 · Deck: 61 · Meta: provisional
- Primary role: Searcher/Tutor · Secondary: Utility
Why it scores here
Drytron Fafnir is a Field Spell whose main value is a card-neutral search: on activation it adds one Drytron Spell/Trap from the Deck to hand, so it converts itself into a second card and keeps the Drytron engine supplied. It appears in all 400 sampled decks at about 2.3 copies each, and in all 5 recorded combos, but the combo data does not tag its role, so its share of the high average board power (92.2) is not attributed to it. Its ATK/DEF are zero and it cannot be material, so it earns nothing from body or interaction; the score rests on reliable access, a cheap Drytron-only slot, and the search-to-engine link.
Axis scores
| Axis | Score | Evidence |
|---|---|---|
| Accessibility | 70 | Live in all 400 sampled decks at 2.3 copies on average, and the search is available once per activation; no combo tags it as a starter or searched card, so this is observed deck access, not combo-verified access (observed). |
| Combo & Conversion | 55 | It appears in 5 of 5 recorded combos with an average power index of 92.2, but combo role is empty and no starter or payoff role is tagged, so its contribution is inferred rather than measured (observed/inferred). |
| Resource Economy | 50 | Its search is a 1-for-1 that replaces itself with a Drytron Spell/Trap, so card advantage is roughly even, and it does not refuel from the graveyard (verified). |
| Effect & Interaction | 25 | The only interaction is a once-per-turn Level reduction on a monster summoned while a Drytron monster is controlled, which is situational and does not negate anything; its own activation can still be negated (verified). |
| Material Utility | 5 | It is a Spell Card and cannot be used as Xyz, Synchro, Fusion, or Link material, so this axis scores near zero (verified). |
| Resilience & Flexibility | 50 | It is a Field Spell with three copies typical in the main archetype, but it occupies the field zone and is vulnerable to field removal and activation negation; the deck redundancy helps only when a copy is still in hand or Deck (inferred). |
| Deck-Building Efficiency | 75 | It is a Drytron-only Spell with no garnet, lock, or brick restriction, and it is run in 99% of the sampled decks at 2–3 copies, which keeps the slot cost low (observed). |
Calculation
Weight profile: 0.7 Searcher/Tutor + 0.3 Utility (default). Intrinsic ≈ 50, Deck ≈ 61, Meta = provisional. Modifiers: none. Final formula: 0.40*Intrinsic + 0.60*Deck
Strengths
- Searches a Drytron Spell/Trap from the Deck on activation, so it replaces itself and keeps the engine supplied
- Live in all 400 sampled decks at about 2.3 copies on average across the Drytron archetypes
- Appears in all 5 recorded combos, with an average board power index of 92.2 (not attributed to this card alone)
- Cheap to run: a Drytron-only Spell with no garnet or lock restriction
Weaknesses
- Zero ATK, DEF, and material value, so it contributes nothing as a body
- Occupies the Field Spell zone and can be replaced or destroyed by field removal
- Its level-reduction effect is situational, limited to once per turn and to Drytron boards
- The combo evidence does not tag its role, so its contribution to combo conversion is unverified
Counters / choke points
- Negating its activation (only Ritual Spell activations are protected by the text) (verified)
- Field-zone removal or replacement by a second Field Spell (inferred)
- Hand traps or disruption that stops the Drytron search line before it resolves (inferred)
Best use
Searcher/Tutor (Field Spell): search one Drytron Spell/Trap on activation. Decks: Drytron (archetype 726), Drytron (archetype 2329), Drytron (archetype 146). Suggested copies: 3.
Evidence & gaps
- Verified: Searches one Drytron Spell/Trap from the Deck on activation, excluding Drytron Fafnir; Cannot be used as material; it is a Spell Card with zero ATK and DEF; Its own activation can be negated; only Ritual Spell activations are protected; Level reduction is once per turn, limited to a monster summoned while the player controls a Drytron monster
- Observed: Present in 400 of 400 sampled decks, at 2.26 copies on average; Present in 5 of 5 recorded combos, with an average power index of 92.2 when present; Partnered with the core Drytron monsters in 79–99% of decks
- Inferred: Its search is card-neutral, so it contributes roughly even card advantage; Its value depends on the Drytron engine, so it is weak outside that archetype
- Data gaps: No banlist token; assumed 3 copies (unlimited) Combo combo role is empty, so the card's starter, searched, and payoff contribution cannot be measured No rulings or FAQ data supplied for the Level-reduction timing usage statistics covers only 4 archetype homes top-card data shows no ranking data






