Toxic 1 (Players dealt combat damage by this creature also get a poison counter.) When this creature dies, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Target creature you control gets +2/+2 until end of turn. If that creature has toxic, draw a card.

Toxic 2 (Players dealt combat damage by this creature also get two poison counters. A player with ten or more poison counters loses the game.) When this creature enters, you and target opponent each create a Treasure token. Whenever an opponent sacrifices a noncreature token, that player gets two poison counters.

Deathtouch Toxic 1 (Players dealt combat damage by this creature also get a poison counter.)

Trample, infect, indestructible If Blightsteel Colossus would be put into a graveyard from anywhere, reveal Blightsteel Colossus and shuffle it into its owner's library instead.

Toxic 2 (Players dealt combat damage by this creature also get two poison counters.)

Toxic 1 (Players dealt combat damage by this creature also get a poison counter.) During your turn, this creature has first strike.

Flying Toxic 1 (Players dealt combat damage by this creature also get a poison counter.) When this creature enters, another target creature you control with toxic gets +1/+1 and gains flying until end of turn.

Deathtouch Toxic 1 (Players dealt combat damage by this creature also get a poison counter.)

Double strike Toxic 1 (Players dealt combat damage by this creature also get a poison counter.)

Equipped creature gets +0/+2 and has toxic 1. (Players dealt combat damage by equipped creature also get a poison counter.) Equip {1}

Toxic 2 (Players dealt combat damage by this creature also get two poison counters.) Whenever another creature you control with toxic attacks, it gets +1/+1 until end of turn.

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.) You may have this creature assign its combat damage as though it weren't blocked.

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.) {G}: Target creature blocks this creature this turn if able.

This spell can't be countered. Trample, ward {4}, haste Toxic 4 (Players dealt combat damage by this creature also get four poison counters.)

Toxic 1 (Players dealt combat damage by this creature also get a poison counter.) When this creature enters, exile target artifact or creature an opponent controls with mana value 3 or less until this creature leaves the battlefield.

Flying When this creature enters, create two 1/1 colorless Phyrexian Mite artifact creature tokens with toxic 1 and "This token can't block." (Players dealt combat damage by them also get a poison counter.)

Toxic 1 (Players dealt combat damage by this creature also get a poison counter.) When this creature dies, create a 1/1 colorless Phyrexian Mite artifact creature token with toxic 1 and "This token can't block."

Toxic 1 (Players dealt combat damage by this creature also get a poison counter.) When this creature enters, you may return another permanent you control to its owner's hand. If you do, create a 1/1 colorless Phyrexian Mite artifact creature token with toxic 1 and "This token can't block."

Equipped creature gets +2/+0. Whenever equipped creature attacks, create a 1/1 colorless Phyrexian Mite artifact creature token with toxic 1 and "This token can't block." (Players dealt combat damage by it also get a poison counter.) Equip {2}{W}