EARTH
4Shell Knight
ATK:
0
DEF:
2000
View:
6531
When this card is Normal Summoned: You can change this card to Defense Position, and if you do, inflict 500 damage to your opponent. If this card is destroyed by battle or sent to the GY by a card effect: You can add 1 Level 8 Rock monster from your Deck to your hand, or if "Fossil Fusion" is in your GY, you can Special Summon it instead. For the rest of this turn, you cannot activate cards, or the effects of cards, with the same name as that card. You can only use this effect of "Shell Knight" once per turn.
Shell Knight — Power Evaluation
Final Score: 61 ± 6 · Confidence: Medium
- Intrinsic: 62 · Deck: 64 · Meta: provisional
- Primary role: Searcher/Tutor · Secondary: Material body, Combo enabler
Why it scores here
Shell Knight is a compact Rock engine piece: a Level 4 that turns a Normal Summon or an effect-send to the GY into a costless search for a Level 8 Rock monster (in practice Gaia Plate the Earth Giant), or a free Special Summon of that monster when Fossil Fusion is already in the GY. Its 0 ATK / 2000 DEF and its 500 burn on Normal Summon earn essentially nothing here — the score comes from the deck-to-hand tutoring, the second trigger route from the GY, and the Rock body it leaves behind as Fossil Fusion material. The card is heavily concentrated in Fossil/Rock shells (about 65% Fossil, plus Adamancipator, Vernusylph, Block Dragon) and no combo boards were supplied, so it lands in the low 60s rather than higher.
Axis scores
| Axis | Score | Evidence |
|---|---|---|
| Accessibility | 74 | Level 4 that is live as a Normal Summon and whose search also triggers when it is sent to the GY by Miracle Rupture (co-played in 90.1% of its decks) or discarded by Dark World Dealings (36.9%), giving several practical routes (observed). |
| Combo & Conversion | 56 | Text converts one Normal Summon or one GY send into a searched Level 8 Rock — Gaia Plate the Earth Giant is co-played in 67.6% of decks — or a free Special Summon of that monster while Fossil Fusion sits in the GY; no combo data was supplied so this is text-only (inferred). |
| Resource Economy | 62 | The add is costless and replaces the spent body in card count, while the body itself stays in the GY as a Rock that Fossil Fusion can later banish (inferred). |
| Effect & Interaction | 12 | The only opponent-facing effect is an optional 500 burn on Normal Summon; there is no negation, disruption, or removal (verified). |
| Material Utility | 58 | A Level 4 EARTH Rock with 0 ATK / 2000 DEF is a clean generic material and a valid Rock to banish from the GY for Fossil Fusion even if its effect is negated (inferred). |
| Resilience & Flexibility | 48 | One once-per-turn trigger that requires a specific zone transition (battle destruction or effect-send) and is blanked by banish or bounce, though it does function across deck-field-GY lines (inferred). |
| Deck-Building Efficiency | 66 | Average 1.62 copies with most lists at 1-2 and only 25 decks at 3, so it is a cheap slot, but the name-lock on activating the fetched card's name is a real cost (observed). |
Calculation
Weight profile: 0.7 Searcher/Tutor + 0.3 Material body. Intrinsic ≈ 62, Deck ≈ 64, Meta = provisional. Modifiers: Self-locking name restriction (-2). Final formula: 0.40*Intrinsic + 0.60*Deck
Strengths
- Costless Deck-to-hand tutor for a Level 8 Rock monster
- Can Special Summon the fetched monster instead when Fossil Fusion is in the GY
- Two trigger routes: Normal Summon burn, or destruction by battle / effect-send to the GY
- Leaves an EARTH Rock body in the GY that Fossil Fusion can banish as material
- Cheap to run — average 1.62 copies, most lists at 1-2
Weaknesses
- 0 ATK body, only useful in Defense Position
- Graveyard effect is once per turn and needs a specific zone transition to fire
- Blanked by banishing, bouncing, or negating the trigger instead of sending it to the GY
- Restricts activating cards with the same name as the fetched card for the rest of the turn
- Value is heavily concentrated in Fossil / Rock shells (about 65% of its decks are Fossil)
Counters / choke points
- Called by the Grave / D.D. Crow (banish instead of GY send)
- Ash Blossom & Joyous Spring or other search negation
- Effect negation on the Normal Summon or on the GY trigger (Effect Veiler, Infinite Impermanence)
- Macro Cosmos / Dimension Shifter style effects that prevent the GY trigger
- Returning it to the hand or Deck instead of sending it to the GY
Best use
Normal Summonable tutor that fetches a Level 8 Rock (Gaia Plate the Earth Giant) or revives it via Fossil Fusion, while stocking the GY for Fossil Fusion. Decks: Fossil, Adamancipator (Rock), Vernusylph, Block Dragon Rock builds. Suggested copies: 2.
Evidence & gaps
- Verified: Card text: Normal Summon trigger changes it to Defense Position and inflicts 500 damage; Card text: if destroyed by battle or sent to the GY by a card effect, add 1 Level 8 Rock monster from the Deck to hand, or Special Summon it instead if Fossil Fusion is in the GY; Card text: once-per-turn clause and a restriction forbidding activation of cards with the same name as the fetched card for the rest of the turn; Card identity: Level 4 EARTH Rock, 0 ATK / 2000 DEF, no archetype
- Observed: 222 recent decks run it, all in the main deck, at an average of 1.62 copies (109 decks at 1, 88 at 2, 25 at 3); Archetype spread: Fossil ~65.8% combined, Adamancipator 10%, Vernusylph 5.4%, Block Dragon 3.6%, Horus 2.3%, Megalith 1.8%; Co-play: Weathering Soldier 91%, Fossil Fusion 90.5%, Miracle Rupture 90.1%, Gaia Plate the Earth Giant 67.6%, Dark World Dealings 36.9%; 28 distinct archetypes appear in the deck sample
- Inferred: The intended search target in practice is Gaia Plate the Earth Giant, given its 67.6% co-deck rate; Effect-send routes such as Miracle Rupture or Dark World Dealings discard let the GY trigger fire without battle; The body remains a banishable Rock for Fossil Fusion even when its effect is negated; Multiple practical access routes from hand and GY support the accessibility score
- Data gaps: no combos supplied — combo conversion is text-only inference no guides supplied no banlist token — assumed 3 copies (unlimited) no usage statistics (StatisticsCard) — archetype inclusion % inferred from the 222-deck sample only no dated metagame sample, so meta power is null