Equipped creature has haste. (It can attack and {T} no matter when it came under your control.) At the beginning of your upkeep, put a +1/+1 counter on equipped creature if it's red. Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

({T}: Add {B}.)

Flying Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.) Whenever Nefarox attacks alone, defending player sacrifices a creature of their choice.

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

Whenever a creature attacks you or a planeswalker you control, that creature's controller loses 1 life.

Shadow (This creature can block or be blocked by only creatures with shadow.) If a card would be put into an opponent's graveyard from anywhere, instead exile it with a void counter on it. {T}, Sacrifice this creature: Choose an exiled card an opponent owns with a void counter on it. You may play it this turn without paying its mana cost.

Whenever another creature you control with power 3 or greater enters, you may draw a card.

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.) {3}{B}: Regenerate this creature. (The next time this creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

Enchant creature you control When Penumbra Umbra is put into a graveyard from the battlefield, create a token that's a copy of enchanted creature, except the token is black. Umbra armor (If enchanted creature would be destroyed, instead remove all damage from it and destroy this Aura.)

{T}: Add {G}.

Winter's Intervention deals 2 damage to target creature. You gain 2 life.

Return target creature card from your graveyard to your hand.