Whenever Eivor deals combat damage to a player, you mill that many cards. You may put a Saga card and/or a land card from among them onto the battlefield.
Swing with Eivor (or attackers) to mill chunks of your library, then cheat Sagas and lands directly into play for free value while she keeps growing your board. You build a Naya midrange/Sagas pile that snowballs card advantage and ramp until you overwhelm the table with creatures and Saga payoffs. Trample and haste mean Eivor connects early and often, turning combat into a recurring tutor-and-cheat engine.
Free Saga and land drops every combat accelerate your game state hard
Trample + haste guarantee damage gets through and triggers immediately
Self-mill fuels graveyard synergies and reanimation
Naya colors give access to the best ramp, Sagas, and beaters
Entirely combat-dependent—if Eivor is removed or blocked she does nothing
Six mana makes her slow to deploy and easy to answer before value accrues
Milling is random; you can whiff and dump key cards into the yard
Three-color manabase and Saga shell can be inconsistent without fixing
Replay milled and sacrificed lands, smoothing draws and maximizing Eivor's land hits.
Tighten the manabase with fetchlands, duals, and Crucible/Wrenn loops so Eivor's land hits are never dead, and prioritize high-impact Sagas you're thrilled to flip for free. Add evasion and protection (Swiftfoot Boots, Sylvan Safekeeper, Heroic Intervention) so she reliably connects, and lean into graveyard payoffs to convert random mill into reanimation value. Top end with landfall token engines and a couple of compact wincons to ensure the snowball actually closes games.