Sekretklauenmyr

Infizieren (Diese Kreatur fügt Schaden in Form von -1/-1-Marken für Kreaturen und von Giftmarken für Spieler zu.)
Immer wenn der Sekretklauenmyr geblockt wird, erhält er +2/+2 bis zum Ende des Zuges.

Myr garra icórida

Infectar. (Esta criatura hace daño a las criaturas en forma de contadores -1/-1 y a los jugadores en forma de contadores de veneno.)
Siempre que el Myr garra icórida sea bloqueado, obtiene +2/+2 hasta el final del turno.

Myr sanigriffe

Infection (Cette créature inflige des blessures aux créatures sous la forme de marqueurs -1/-1 et aux joueurs sous la forme de marqueurs « poison ».)
À chaque fois que le Myr sanigriffe devient bloqué, il gagne +2/+2 jusqu'à la fin du tour.

Myr dagli Artigli d'Icore

Infettare (Questa creatura infligge danno alle creature sotto forma di segnalini -1/-1 e ai giocatori sotto forma di segnalini veleno.)
Ogniqualvolta il Myr dagli Artigli d'Icore viene bloccato, prende +2/+2 fino alla fine del turno.

胆液爪のマイア

感染（このクリーチャーはダメージを、クリーチャーには－１/－１カウンターの形で、プレイヤーには毒カウンターの形で与える。）
胆液爪のマイアがブロックされた状態になるたび、ターン終了時まで、これは＋２/＋２の修整を受ける。

Myr da Garra Icorídia

Infectar (Esta criatura causa dano a criaturas na forma de marcadores -1/-1 e a jogadores na forma de marcadores de veneno.)
Toda vez que Myr da Garra Icorídia é bloqueado, ele recebe +2/+2 até o final do turno.

Ichorclaw Myr

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
Whenever Ichorclaw Myr becomes blocked, it gets +2/+2 until end of turn.

Phyrexia: All Will Be One Commander

Scars of Mirrodin

A player who has ten or more poison counters loses the game. This is a state-based action.

Damage from a source with infect affects planeswalkers normally.

Damage from a source with infect is damage in all respects. If the source with infect also has lifelink, damage dealt by that source also causes its controller to gain that much life. Damage from a source with infect can be prevented or redirected. Abilities that trigger on damage being dealt will trigger if a source with infect deals damage, if appropriate.

If damage from a source with infect that would be dealt to a player is prevented, that player doesn't get poison counters. If damage from a source with infect that would be dealt to a creature is prevented, that creature doesn't get -1/-1 counters.

Infect's effect applies to any damage, not just combat damage.

The -1/-1 counters remain on the creature indefinitely. They're not removed if the creature regenerates or the turn ends.

Whenever Ichorclaw Myr becomes blocked, its last ability triggers just once, no matter how many creatures it became blocked by. It will get just +2/+2.