Phyrexian Arena

At the beginning of your upkeep, you draw a card and you lose 1 life.

Phyrexian Scuta

Kicker—Pay 3 life. (You may pay 3 life in addition to any other costs as you cast this spell.)
If Phyrexian Scuta was kicked, it enters with two +1/+1 counters on it.

Flametongue Kavu

When Flametongue Kavu enters, it deals 4 damage to target creature.

Ravenous Rats

When Ravenous Rats enters, target opponent discards a card.

Nightscape Familiar

Blue spells and red spells you cast cost {1} less to cast.
{1}{B}: Regenerate Nightscape Familiar.

Swamp

Skizzik

Kicker {R} (You may pay an additional {R} as you cast this spell.)
Trample, haste
At the beginning of the end step, if Skizzik wasn't kicked, sacrifice it.

Terminate

Destroy target creature. It can't be regenerated.

Mountain

Phyrexian Rager

When Phyrexian Rager enters, you draw a card and you lose 1 life.