Cheapest priced copy (Ravnica Remastered): $0.49 at Card Kingdom, near mint, their price list as of .
Lazav, the Multifarious 
Legendary Creature — Shapeshifter · 1/3 · Mythic · Guilds of Ravnica · #184
When Lazav enters, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)
{X}: Lazav becomes a copy of target creature card in your graveyard with mana value X, except its name is Lazav, the Multifarious, it's legendary in addition to its other types, and it has this ability.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
7 printings · $0.49 to $2.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Guilds of Ravnica | 184 | Mythic | $0.99 | $2.99 |
| Murders at Karlov Manor Commander | 214 | Mythic | $0.99 | — |
| Guilds of Ravnica Promos | 184s | Mythic | — | $0.99 |
| The List | GRN-184 | Mythic | $1.29 | — |
| Ravnica Remastered | 196 | Rare | $0.59 | $0.49 |
| Ravnica Remastered | 371 | Rare | $0.49 | $0.49 |
| Ravnica Remastered | 371z | Rare | — | — |
6 rulings from Wizards of the Coast
- 5 October 2018Lazav copies exactly what was printed on the original card and nothing else, except the characteristics it specifically modifies. It doesn't copy any information about the object the card was before it was put into your graveyard.
- 5 October 2018Because Lazav isn't entering the battlefield when it becomes a copy of a card, any "When this enters the battlefield" or "This enters the battlefield with" abilities of the copied card won't apply.
- 5 October 2018Any effects that applied to Lazav before it becomes a copy of another card will continue to apply once it's become a copy. The same is true of any counters that are on Lazav.
- 5 October 2018If a card in your graveyard has {X} in its mana cost, X is considered to be 0.
- 5 October 2018If the copied card has an ability that can be activated only once each turn, copying that card a second time will allow you to activate the new instance of that ability.
- 12 January 2024You perform the actions stated on a card in sequence. For some spells and abilities, you'll surveil last. For others, you'll surveil and then perform other actions.