Cheapest priced copy (Phyrexia: All Will Be One): $0.49 at Card Kingdom, near mint, their price list as of .
Monument to Perfection 
Artifact · Rare · Phyrexia: All Will Be One · #396
{3}, {T}: Search your library for a basic, Sphere, or Locus land card, reveal it, put it into your hand, then shuffle.
{3}: This artifact becomes a 9/9 Phyrexian Construct artifact creature, loses all abilities, and gains indestructible and toxic 9. Activate only if there are nine or more lands with different names among the basic, Sphere, and Locus lands you control.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
4 printings · $0.49 to $0.79 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Phyrexia: All Will Be One | 233 | Rare | $0.49 | $0.49 |
| Phyrexia: All Will Be One | 396 | Rare | $0.49 | $0.49 |
| Phyrexia: All Will Be One Promos | 233p | Rare | $0.49 | $0.79 |
| Phyrexia: All Will Be One Promos | 233s | Rare | — | $0.49 |
9 rulings from Wizards of the Coast
- 4 February 2023Multiple instances of toxic are cumulative. For example, if a creature has toxic 2 and gains toxic 1 due to another effect, combat damage that creature deals to a player will cause that player to get 3 poison counters.
- 4 February 2023A player with ten or more poison counters loses the game. This is a state-based action and doesn't use the stack. In other words, it happens immediately and players can't respond to it, just like a player losing the game due to having 0 or less life.
- 4 February 2023Damage dealt by a creature with toxic grants the same number of counters regardless of how much damage is dealt. Notably, if a replacement effect modifies the damage in some way (such as that of Gratuitous Violence), the number of counters given remains unchanged.
- 4 February 2023Conversely, replacement effects that apply to the number of counters put on a player can modify the counters placed this way. For example, Vorinclex, Monstrous Raider's last two abilities can apply to counters placed this way.
- 4 February 2023Because the last ability causes Monument to Perfection to lose all the abilities, activating it multiple times before the first activation resolves does not result in it having multiple instances of toxic 9.
- 4 February 2023Toxic doesn't change the amount of combat damage a creature deals. For example, if a 2/2 creature with toxic 1 deals combat damage to a player, that creature will deal 2 damage. The results of that damage are the player loses 2 life and gets a poison counter.
- 4 February 2023If a creature with toxic deals combat damage to a creature or planeswalker, or if it deals noncombat damage, toxic has no effect and no player gets poison counters.
- 4 February 2023Monument to Perfection's last ability lasts indefinitely.
- 4 February 2023Any other effects of that damage, such as life gain from lifelink, still apply.