Kirmu, Identity Eater

Changeling (This card is every creature type.)

Kirmu, Identity Eater gains +1/+1 for each Phyrexian you control.

If a triggered ability of another Phyrexian you control triggers, that ability triggers an additional time.

When this creature is destroyed, attach it to target creature you control instead, that creature gains "This card gains +1/+1 for each Phyrexian you control. If a triggered ability of another Phyrexian you control triggers, that ability triggers an additional time."