Phyrexia: All Will Be One is shaping up to be a very impactful set. We’ve seen some very strong mythic rare cards, a highly contentious counterspell, and a plethora of powerful planeswalkers. With all of the power this set contains, it can be difficult to focus on the discourse around individual cards. One card from the set is drawing attention as a powerful aggressive threat, with the potential to be playable across multiple formats. MTG Aggro decks are certainly getting a new threat here.
The Dominus Cycle

The card in question comes from the “Dominus cycle”, a set of five mono-color legendary Phyrexian Horrors with exceedingly powerful effects. Every card in the cycle can make itself indestructible at the cost of some Phyrexian mana and doing something negative to yourself: such as sacrificing creatures, or discarding cards.
All of the cards in the cycle have an effect that causes something to double.
Mondrak, Glory Dominus

{1}{W/P}{W/P}, Sacrifice two other artifacts and/or creatures: Put an indestructible counter on Mondrak. ({W/P} can be paid with either {W} or 2 life.)
doubles the number of tokens you create, making it an
Anointed Procession


If you would proliferate, proliferate twice instead.
{1}{U/P}{U/P}, Remove three counters from among other artifacts, creatures, and planeswalkers you control: Put an indestructible counter on Tekuthal. ({U/P} can be paid with either {U} or 2 life.)
doubles all of your proliferate triggers, making it a powerful option in counter focussed decks.
Drivnod, Carnage Dominus

{B/P}{B/P}, Exile three creature cards from your graveyard: Put an indestructible counter on Drivnod. ({B/P} can be paid with either {B} or 2 life.)
causes death triggers to activate an additional time, moving Teysa Karlov’s ability into monoblack.
Zopandrel, Hunger Dominus

At the beginning of each combat, double the power and toughness of each creature you control until end of turn.
{G/P}{G/P}, Sacrifice two other creatures: Put an indestructible counter on Zopandrel. ({G/P} can be paid with either {G} or 2 life.)
doubles the power and toughness of your creatures on your turn, calling back to
Unnatural Growth

Although all of the cards from this cycle have generated quite a lot of hype and discussion, perhaps none have gotten the community quite as riled up as the cycle’s Red card.
Solphim, Mayhem Dominus

{1}{R/P}{R/P}, Discard two cards: Put an indestructible counter on Solphim. ({R/P} can be paid with either {R} or 2 life.)
.
Solphim, Mayhem Dominus

For four mana,
Solphim, Mayhem Dominus

{1}{R/P}{R/P}, Discard two cards: Put an indestructible counter on Solphim. ({R/P} can be paid with either {R} or 2 life.)
is a 5/4, a fantastic stat line for the cost. Solphim doubles the amount of noncombat damage you deal to opponents and the cards they control. This is an exceedingly powerful effect. Although damage-increasing effects in Red are nothing new, Solphim offers something that few other cards can compete with, due to its immensely threatening stats in conjunction with its ability.
Like the other cards in its cycle, Solphim can become indestructible. You need to discard two cards and pay three mana, two of which are Phyrexian Red, to give Solphim an indestructible counter. This makes Solphim a poor choice for opponents to target with a removal effect like
Infernal Grasp

One of the best ways to emphasize Solphim’s power is to compare it to other cards which occupy a similar niche. In Standard, many mono-Red aggro decks currently run the card
Mechanized Warfare

Solphim may also have prospects in Pioneer. Pioneer has a wider pool of damaging Red spells than Standard does, so Solphim has more tools to work with.
Skewer the Critics

Skewer the Critics deals 3 damage to any target.
,
Viashino Pyromancer


Wizard's Lightning deals 3 damage to any target.
all becoming very intimidating with Solphin in play.
It may be harder for Solphim to see play in Modern. Modern decks typically have a lower mana curve than Standard and Pioneer decks. Four mana value cards are rarely seen, especially in aggressive decks. In addition, the presence of
Path to Exile

Solphim in Commander
Commander players are very excited to start brewing with Solphim. The huge pool of cards available in the format means that there are many devastating spells that can have their power doubled by Solphim’s effect. X spells like
Jaya’s Immolating Inferno

Jaya's Immolating Inferno deals X damage to each of up to three targets.
, Coment Storm, and
Crackle With Power


+2: Each opponent gets an emblem with "At the beginning of your upkeep, this emblem deals 1 damage to you."
−3: Chandra deals 3 damage to each non-Elemental creature.
−X: Chandra deals X damage to target creature or planeswalker. If a permanent dealt damage this way would die this turn, exile it instead.
, and
Chandra, Fire Artisan

+1: Exile the top card of your library. You may play it this turn.
−7: Exile the top seven cards of your library. You may play them this turn.
become significantly more threatening.
Although some want to put Solphim in the command zone, the card also has great potential for supporting other commanders. Toralf, God of Fury’s ability to deal excess non-combat damage to new targets is enhanced significantly by Solphim. Zevlor, Elturel Exile’s ability to copy your spells and hit new targets becomes twice as good when those spells are twice as powerful. Mizzix of the Izmagnus gives all of your spells a discounted cost, whilst Solphim makes them more powerful.
The community on Reddit are eagerly sharing their brews with one another…
“I’m at work, and my cards are at home, and I can hear my Heartless Hidetsugu deck screaming with excitement from here.” Spatulor
“Dragon’s Approach decks are going to have a field day with this.” Imperialtrace
“aaandd that’s a wincon.” GeneralShark97
Conclusion
Just how powerful will Solphim be? The card certainly looks very impressive, but brewing untested strategies with an unreleased card, and actually making use it in practice are very different things. With Phyrexia: All Will Be One’s release due next week, players will soon have the chance to test Solphim out to see if it lives up to the hype.