Coldheart Reaver

Whenever another phyrexian or snow
creature enters the battlefield under your
control, Drossian Reaver gets +3/+0 and
gains death touch until end of turn.
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"After far too long of chasing the Swelterbelt Fleete, we've cornered them with a new breed, spliced with artifice from the ice age."
—Geth, the Vaultmage