Urza's Saga
Enchantment Land — Urza's Saga
(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I — This Saga gains "
: Add 
."
II — This Saga gains "
, : Create a 0/0 colorless Construct artifact creature token with 'This token gets +1/+1 for each artifact you control.'"
III — Search your library for an artifact card with mana cost 
or 
, put it onto the battlefield, then shuffle.
Illustrated by
Modern Horizons 2#259RareEnglishLegality
Rulings
Urza's Saga is a land, so it can only be played as a land. It cannot be cast as a spell.
Urza's Saga gains an ability from its first and second chapters. It keeps those abilities for as long as it's on the battlefield.
While resolving the chapter III ability, you can find only a card with actual mana cost or , not mana value 0 or 1. For example, you couldn't find a card with mana cost 
or one with mana cost 
.
Even though Urza's Saga is a land, it is also still a Saga, and it will be sacrificed after its last chapter ability resolves.
Although Urza's Saga has the Urza's land type, it doesn't interact with Urza's Tower, Urza's Mine, or Urza's Power Plant.