Cheapest priced copy (Saviors of Kamigawa): $5.49 at Card Kingdom, near mint, their price list as of .
Sasaya, Orochi Ascendant // Sasaya's Essence 
Legendary Creature — Snake Monk // Legendary Enchantment · 2/3 · Rare · Saviors of Kamigawa · #145
Reveal your hand: If you have seven or more land cards in your hand, flip Sasaya.
Whenever a land you control is tapped for mana, add an additional one mana of any type that land produced for each other land you control with the same name as it.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
1 printing · $5.49 to $34.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Saviors of Kamigawa | 145 | Rare | $5.49 | $34.99 |
8 rulings from Wizards of the Coast
- 1 June 2005Sasaya's Essence has a triggered mana ability. Like activated mana abilities, the triggered mana ability doesn't use the stack.
- 1 June 2005If Sasaya's Essence's controller has four Forests and taps one of them for {G}, the Essence will add {G}{G}{G} for a total of {G}{G}{G}{G}.
- 1 June 2005The triggered mana ability counts the number of other lands with that same name and adds that much mana. The type (that is, the color of mana or colorless mana) is the same as the mana the land just produced.
- 1 June 2005If Sasaya's Essence's controller has two Brushlands and taps one of them for {W}, Sasaya's Essence adds another {W}. It won't produce {G} or {C} unless the land was tapped for {G} or {C} instead.
- 1 June 2005Each Ascendant is legendary in both its unflipped and flipped forms. This means that effects that look for legendary creature cards, such as Time of Need and Captain Sisay, can find an Ascendant.
- 1 June 2005If Sasaya's Essence's controller has four Mossfire Valley and taps one of them for {R}{G}, the Essence will add three mana (one for each other Mossfire Valley) of any combination of {R} and/or {G}.
- 1 June 2005You don't need to have seven lands in hand to reveal your hand. You leave your hand revealed until the ability resolves. If you don't have seven or more land cards in your hand at that time, the effect does nothing.
- 1 June 2005You don't need to tap Sasaya to use its ability, so you can activate the ability on the turn Sasaya comes under your control.