Prevent all damage that black sources and red sources would deal this turn.

Cumulative upkeep (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)
At the beginning of your end step, Magmatic Core deals X damage divided as you choose among any number of target creatures, where X is the number of age counters on it.

, Reveal X red cards from your hand, Sacrifice Martyr of Ashes: Martyr of Ashes deals X damage to each creature without flying.

, Reveal X black cards from your hand, Sacrifice Martyr of Bones: Exile up to X target cards from a single graveyard.

, Reveal X blue cards from your hand, Sacrifice Martyr of Frost: Counter target spell unless its controller pays .

, Reveal X white cards from your hand, Sacrifice Martyr of Sands: You gain three times X life.

, Reveal X green cards from your hand, Sacrifice Martyr of Spores: Target creature gets +X/+X until end of turn.

, Sacrifice Mishra's Bauble: Look at the top card of target player's library. Draw a card at the beginning of the next turn's upkeep.

: Add .
, , Sacrifice Mouth of Ronom: It deals 4 damage to target creature. ( can be paid with one mana from a snow permanent.)

Destroy target artifact or enchantment.
Draw a card at the beginning of the next turn's upkeep.

Whenever Ohran Viper deals combat damage to a creature, destroy that creature at end of combat.
Whenever Ohran Viper deals combat damage to a player, you may draw a card.

: Target snow creature gains first strike until end of turn. ( can be paid with one mana from a snow permanent.)

, Sacrifice a creature: Orcish Bloodpainter deals 1 damage to any target.

Trample
While you're searching your library, you may cast Panglacial Wurm from your library.

Draw two cards, then sacrifice a permanent.

Flying; fear (This creature can't be blocked except by artifact creatures and/or black creatures.)
Cumulative upkeep (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

Cumulative upkeep (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)
At the beginning of your end step, draw a card for each age counter on Phyrexian Etchings.
When Phyrexian Etchings is put into a graveyard from the battlefield, you lose 2 life for each age counter on it.

Phyrexian Ironfoot doesn't untap during your untap step.
: Untap Phyrexian Ironfoot. ( can be paid with one mana from a snow permanent.)

Phyrexian Snowcrusher attacks each combat if able.
: Phyrexian Snowcrusher gets +1/+0 until end of turn. ( can be paid with one mana from a snow permanent.)

Cumulative upkeep—Sacrifice a creature. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)