Card A · Star Captain - Steel Viper A: Develop the Envelopment
FrontBack
Card B · Star Captain - Steel Viper B: Apply Armored Pressure
FrontBack
Card C · Star Captain - Steel Viper C: Reset the Axis
FrontBack
Card D · Star Captain - Steel Viper D: Commit the Local Strike
FrontBack
Card E · Star Captain - Steel Viper E: Break Contact
FrontBack
Original fan-authored Aces archetype. BattleTech belongs to its respective owners.
Deck portrait: BattleTech Wiki / BattleTech game portrait; original file: GuiTxrPort backerChik utr.png
Research evidence
Original researched interpretation; balance requires playtesting. Generic portraits are not canonical likenesses. Ability packages do not automatically grant SPAs or SCAs.
Documented · high confidence: Steel Viper invasion units demonstrated mobile armored attacks, headhunter techniques and strong tactical execution, despite strategic and inter-command coordination limitations. Sources: invading, era3052
Inference · medium confidence: Original Deliberate Envelopment archetype: the precise priority ordering, five states, thresholds, initiative/token orders and support timing are authored interpretations, not published Clan rules. Threatens maneuvering opponents and develops a mobile decisive strike rather than depending only on a frontal charge. Sources: invading, era3052
Inference · medium confidence: Thematic limitation: High-MV target focus can waste fire on evasive opponents; local tactical responses do not solve larger coordination failures. Sources: invading, era3052
Inference · medium confidence: Rules lens: Flankers and Tactical Specialization (Small Unit Actions) as inspiration only; no off-map or size-based initiative ability is granted. The existing Aces token/initiative precedents are used directly as card orders; no SPA or SCA is assigned. Sources: aces, scan0, scan1, hotspots-local
invading · Invading Clans - A Battletech Sourcebook.pdf Printed pp. 79-80 (PDF pp. 80-81), Clan philosophy and martial tenacity
era3052 · Era Report - 3052.pdf Printed pp. 58-59 (PDF pp. 60-61), First Viper headhunters and 400th mobile flanking attacks
sarna-clan · Sarna — Clan Steel Viper https://www.sarna.net/wiki/Clan_Steel_Viper, History / Military; accessed 2026-10-13. Later-era material excluded.
hotspots-local · Hot Spots v300 local SPA/SCA reference fallback data/sca-book-rules.json; data/edge-abilities.json; read-only local SPA catalog snapshot. Live reference.php?section=edge/sca unavailable on 2026-10-13. Used as tactical inspiration only; no abilities granted.