Overview:

This five-color Saga/enchantment-focused deck leverages Terra, Magical Adept to rapidly mill, recur, and duplicate powerful enchantment creatures (primarily Sagas). The commander enables the strategy by fetching key enchantments on entry and transforming to create hasty Saga copies for explosive value. Win conditions include overwhelming board states from copied Sagas (e.g., Summon: Knights of Round), combat damage from massive creatures like Sin, Spira's Punishment, and an infinite combo using Magus Sisters + Clash of the Eikons to infinitely trigger Saga abilities. Recursion engines like Yuna, Hope of Spira and Rydia, Summoner of Mist provide resilience.

Primer:

Core Strategy Execution:

1. Setup (Turns 1-4): Ramp with Arcane Signet, Cultivate, or Farseek. Cast Terra early to mill 5 and fetch a key enchantment (e.g., Black Market Connections or Leyline of the Guildpact). Protect Terra with Swiftfoot Boots or Lightning Greaves.
2. Value Engine (Turns 3-6): Activate Terra's Trance ability (pay {4}{R}{G}) to transform into Esper Terra. Use her Saga chapters to copy high-impact enchantments like Summon: Knights of Round for immediate tokens or Summon: Good King Mog XII for lifelink Moogles. Recur Sagas with Yuna or Rydia.
3. Win Condition Execution (Turns 5-8+):
   • Combat: Flood the board with tokens from copied Sagas. Buff with Rydia's Return or Summon: Titan's Chapter III. Swing wide with Sin, Spira's Punishment creating random token copies.
   • Combo: Assemble Magus Sisters + Clash of the Eikons. Repeatedly remove lore counters from Magus Sisters to infinitely:
     • Put +1/+1 counters on a creature (e.g., Sin)
     • Gain infinite life
     • Fight opponents' creatures to clear the board
   • Control: Use copied Summon: Yojimbo to exile threats or Summon: Shiva to lock down boards.

Mulligan Priorities:

• Keep hands with 3+ lands, including green/blue sources. Prioritize untapped lands.
• Essential: Ramp (e.g., Arcane Signet, Nature's Lore) or Terra herself.
• Strong Includes: Card draw (Black Market Connections), recursion (Yuna, Hope of Spira), or key Sagas (Summon: Knights of Round).
• Avoid hands lacking ramp or Terra-enablers.

Key Tips:

• Maximize Saga Triggers: Time Clash of the Eikons to add/remove counters for instant-speed Saga activations. Copy Sagas with finality counters (from Rydia/Yuna) before they exile.
• Protect Critical Pieces: Equip Terra with boots/greaves before transforming. Hold Counterspell/Dovin's Veto for board wipes targeting your enchantments.
• Leverage Leyline of the Guildpact: Fixes mana and enables off-color Saga casting (e.g., casting Summon: Primal Odin with green mana).
• Recursion Lines: Use Necromancy/Reanimate on Summon: Bahamut for repeated destruction/draw. Fight On! retrieves key creatures.

Weaknesses:

Critical

• Graveyard Hate (Rest in Peace, Leyline of the Void): Cripples recursion from Yuna, Rydia, Evil Reawakened, and Terra's mill.
• Enchantment Wipes (Back to Nature, Farewell): Erases the deck's primary card type with minimal recovery tools.
• Torpor Orb Effects: Disables Saga ETBs and Sin's token generation, nullifying core value engines.

Moderate

• Commander Reliance: Terra drives consistency; repeated removal (3+ times) severely slows the deck.
• Stax Pieces (Rule of Law, Cursed Totem): Limits Saga-copying turns and deactivates mana dorks/activated abilities.
• Slow Mana Base: Multiple taplands (e.g., trilands, Simic Growth Chamber) delay critical early plays.

Minor

• Combo Fragility: Magus Sisters combo requires resolving two specific cards and survives a turn cycle.
• Targeted Discard: Lacks hand protection; key pieces like Leyline or combo enablers are vulnerable.

Most Important Cards:

• Terra, Magical Adept (Strategy enabler: mills, fetches, copies Sagas)
• Leyline of the Guildpact (Mana fixing, enables off-color casting)
• Magus Sisters (Infinite combo piece, versatile value)
• Yuna, Hope of Spira (Recurs enchantments, grants trample/lifelink)
• Sin, Spira's Punishment (Primary beater, generates token value)
• Black Market Connections (Card draw, tokens, life-loss mitigation)
• Summon: Knights of Round (Token army in a can)
• Clash of the Eikons (Combo enabler, Saga manipulation)
• Rydia, Summoner of Mist (Saga recursion, landfall draw)
• Swiftfoot Boots (Protects Terra/other key creatures)

Attribute Ratings:

Speed: 6/10

• Capable of T6-7 wins via combo or overwhelming Saga value, but slowed by taplands and setup requirements.

Resilience: 5/10

• Recursion (Yuna, Rydia) and protection (boots, counterspells) exist but fold to dedicated enchantment/graveyard hate.

Consistency: 7/10

• Terra tutors enchantments, and black market connections/draw spells dig effectively. High enchantment density ensures targets.

Interaction: 5/10

• Efficient spot removal (Path to Exile, Overkill) and counterspells, but lacks board wipes and struggles against resolved hate pieces.

Rating Justification:

This deck achieves T6-7 wins through potent Saga synergy and a tutorable infinite combo, aligning with the "Focused" tier (T7-8 wins). However, its vulnerability to common disruption (graveyard/enchantment removal) and reliance on resolving/keeping Terra prevent higher resilience scores, capping its ceiling at Optimized Casual.

Power level: 6.0 - 6.5