Avatar: The Last Airbender – Five Nations Midrange

A five-color midrange deck that uses Helga, Skittish Seer and Caretaker's Talent to generate card advantage and tokens while ramping into Serra Angel and a single Niv-Mizzet, Guildpact.

Helga, Skittish Seer draws a card whenever you cast a creature with mana value 4 or greater, and taps for mana equal to her toughness. Serra Angel and Niv-Mizzet, Guildpact both trigger Helga. Caretaker's Talent draws cards off Novice Inspector's Clue tokens and can level up to make more Soldiers. Burnished Hart and Bushwhack fix your mana across five colors. Shock provides cheap interaction to survive against early aggression.

Keep hands with at least two lands, one ramp/fixing spell (Bushwhack or Burnished Hart), and one interaction spell (Banishing Light, Lightning Strike, or Shock). A hand with Helga plus a 4+ mana creature is excellent. Mulligan away hands with no green or white sources.

Early: fix mana with Bushwhack, Evolving Wilds, and Burnished Hart; use Banishing Light, Lightning Strike, and Shock to survive. Mid: deploy Helga, Caretaker's Talent, and Novice Inspector to build a token board and draw cards. Late: cast Serra Angel and Niv-Mizzet, Guildpact to close out the game with flying threats and card advantage.

Fast aggro can overwhelm you if you stumble on mana, though Shock helps. The deck is vulnerable to sweepers and enchantment removal on Caretaker's Talent. Niv-Mizzet, Guildpact requires all five colors, so keep Evolving Wilds for fixing.