STEP & COMPLEAT FOILCheapest priced copy (Phyrexia: All Will Be One): $0.49 at Card Kingdom, near mint, their price list as of .
Ria Ivor, Bane of Bladehold 
Legendary Creature — Phyrexian Knight · 3/4 · Rare · Phyrexia: All Will Be One · #475
Battle cry (Whenever this creature attacks, each other attacking creature gets +1/+0 until end of turn.)
At the beginning of combat on your turn, the next time target creature would deal combat damage to one or more players this combat, prevent that damage. If damage is prevented this way, create that many 1/1 colorless Phyrexian Mite artifact creature tokens with toxic 1 and "This token can't block."
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
5 printings · $0.49 to $1.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Phyrexia: All Will Be One | 214 | Rare | $0.49 | $0.49 |
| Phyrexia: All Will Be One | 323 | Rare | $0.49 | $0.49 |
| Phyrexia: All Will Be One | 475 | Rare | — | $1.49 |
| Phyrexia: All Will Be One Promos | 214p | Rare | $0.49 | $0.49 |
| Phyrexia: All Will Be One Promos | 214s | Rare | — | $0.59 |
7 rulings from Wizards of the Coast
- 4 February 2023If multiple replacement or prevention effects try to modify damage that would be dealt to a player, the player being dealt damage chooses the order in which they apply.
- 12 April 2024Multiple 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.
- 12 April 2024If 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.
- 12 April 2024A 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.
- 12 April 2024Damage 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.
- 12 April 2024Conversely, 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.
- 12 April 2024Toxic 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.