Thestalos the Mega Monarch
FIRE 8

Thestalos the Mega Monarch

  • Archetype:
  • Monarch

  • ATK:
  • 2800

  • DEF:
  • 1000

  • View:
  • 4259




You can Tribute Summon this card by Tributing 1 Tribute Summoned monster. If this card is Tribute Summoned: Look at your opponent's hand and discard 1 card from their hand, then, if it was a Monster Card, inflict damage to your opponent equal to its original Level x 200. If this card was Tribute Summoned by Tributing a FIRE monster, add this additional effect. ● Also, inflict 1000 damage to your opponent after that.




 
 
AI Power Analysis
Boss/End-boardConfidence: MediumEvaluated Oct 7, 2026
53± 8/ 100
Power Score
Intrinsic 53
Deck 57

Thestalos the Mega Monarch — Power Evaluation

Final Score: 53 ± 8 · Confidence: Medium

  • Intrinsic: 53 · Deck: 57 · Meta: provisional
  • Primary role: Boss/End-board · Secondary: Utility

Why it scores here

Thestalos converts a Tribute Summon into an 2800-ATK body plus a discard and burn of Level x 200 (1600 at Level 8), with an extra 1000 damage if the tribute was a FIRE monster. The Tribute Summon condition requires a Tribute Summoned monster already on the field, which is a real gate, so the card is only as reliable as the Monarch line that provides it. High ATK and the damage text earn little on their own; the score rests on the 114-deck Monarch inclusion and the deck-level synergy, not on the stats.

Axis scores

Axis Score Evidence
Accessibility 60 Run in 114 of 114 sampled decks, 60.5% in the Monarch archetype with strong partner co-occurrence, but the Tribute Summon condition gates it (observed, inferred).
Combo & Conversion 55 Text gives a 2800-ATK body plus Level x 200 burn and an extra 1000 with a FIRE tribute; no combo boards are recorded, so the conversion is text-only (verified, inferred).
Resource Economy 35 The discard is a 1-for-1 that costs the card itself as tribute fodder, with no refuel or recursion in the text (verified).
Effect & Interaction 40 Forced discard from the opponent's hand is soft, slow interaction with no negate, removal, or set-trap reach (verified).
Material Utility 60 Level 8 FIRE Pyro is a generic material body for Level-based summons, but no material routes are recorded (inferred).
Resilience & Flexibility 40 Single body with 1000 DEF and no protection, so one removal or negate ends the line (inferred).
Deck-Building Efficiency 60 Runs as a single copy in 104 of 114 decks at no garnet cost, but the Tribute Summon restriction limits where it can be played (observed, inferred).

Calculation

Weight profile: Boss/End-board primary only; no secondary blend applied. Intrinsic ≈ 53, Deck ≈ 57, Meta = provisional. Modifiers: Tribute Summon restriction (-2). Final formula: 0.40*Intrinsic + 0.60*Deck

Strengths

  • 2800 ATK body with a guaranteed Level x 200 burn on Tribute Summon
  • Extra 1000 damage when tributing a FIRE monster
  • Widely included across Monarch decks (114 of 114 sampled decks)
  • Generic Level 8 FIRE material body

Weaknesses

  • Tribute Summon condition requires a Tribute Summoned monster already on the field
  • Discard effect is a soft 1-for-1 with no refuel or negate
  • Single body with 1000 DEF; a single removal or negate ends the line
  • No combo or guide evidence to confirm practical conversion

Counters / choke points

  • Opponent's removal or negates on the body
  • Hand traps and disruption that stop the Tribute Summon enabler

Best use

Boss/End-board finisher with a discard and burn on Tribute Summon. Decks: Monarch (archetype 622), Monarch (archetype 451), Monarch (archetype 170). Suggested copies: 1.

Evidence & gaps

  • Verified: Tribute Summon requires tributing 1 Tribute Summoned monster; On Tribute Summon, opponent discards 1 card from hand; if it was a Monster, inflict Level x 200 damage; If tributed a FIRE monster, inflict an additional 1000 damage; Run in 114 of 114 sampled decks, 1 copy in 104 of them
  • Observed: Monarch archetype inclusion at 60.5% of sampled decks; Strong partner co-occurrence with Monarch support cards (74-86%)
  • Inferred: Tribute Summon condition makes the card dependent on the Monarch line; Discard is soft interaction with no negate or removal; Level 8 FIRE body is a generic material; Single body with no protection is easily removed
  • 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 deck sample only











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