Unconventional Tactics

Target creature gets +3/+3 and gains flying until end of turn.
Whenever a Zombie you control enters, you may pay {W}. If you do, return Unconventional Tactics from your graveyard to your hand.

Stinging Shot

Put three -1/-1 counters on target creature with flying.
Cycling {2} ({2}, Discard this card: Draw a card.)

Traveler's Amulet

{1}, Sacrifice Traveler's Amulet: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.

Plains

Steward of Solidarity

{T}, Exert Steward of Solidarity: Create a 1/1 white Warrior creature token with vigilance. (An exerted creature won't untap during your next untap step.)

Feral Prowler

Gift of Strength

Target creature gets +3/+3 and gains reach until end of turn.

Hour of Revelation

This spell costs {3} less to cast if there are ten or more nonland permanents on the battlefield.
Destroy all nonland permanents.

Mummy Paramount

Whenever another Zombie you control enters, Mummy Paramount gets +1/+1 until end of turn.

Forest

Frilled Sandwalla

{1}{G}: Frilled Sandwalla gets +2/+2 until end of turn. Activate only once each turn.

Miasmic Mummy

When Miasmic Mummy enters, each player discards a card.

Disposal Mummy

When Disposal Mummy enters, exile target card from an opponent's graveyard.

Bontu the Glorified

Menace, indestructible
Bontu the Glorified can't attack or block unless a creature died under your control this turn.
{1}{B}, Sacrifice another creature: Scry 1. Each opponent loses 1 life and you gain 1 life.

Impeccable Timing

Impeccable Timing deals 3 damage to target attacking or blocking creature.

Seraph of the Suns

Flying
Indestructible (Damage and effects that say "destroy" don't destroy this creature. If its toughness is 0 or less, it's still put into its owner's graveyard.)

Without Weakness

Target creature you control gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it. If its toughness is 0 or less, it's still put into its owner's graveyard.)
Cycling {2} ({2}, Discard this card: Draw a card.)

Oketra the True

Double strike, indestructible
Oketra the True can't attack or block unless you control at least three other creatures.
{3}{W}: Create a 1/1 white Warrior creature token with vigilance.

Scrounger of Souls

Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Dissenter's Deliverance

Destroy target artifact.
Cycling {G} ({G}, Discard this card: Draw a card.)

Dutiful Servants

Sixth Sense

Enchant creature
Enchanted creature has "Whenever this creature deals combat damage to a player, you may draw a card."

Swamp

Ambuscade

Target creature you control gets +1/+0 until end of turn. It deals damage equal to its power to target creature an opponent controls.

Cancel

Beneath the Sands

Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
Cycling {2} ({2}, Discard this card: Draw a card.)

Binding Mummy

Whenever another Zombie you control enters, you may tap target artifact or creature.

Gift of Paradise

Enchant land
When Gift of Paradise enters, you gain 3 life.
Enchanted land has "{T}: Add two mana of any one color."

Scarab Feast

Exile up to three target cards from a single graveyard.
Cycling {B} ({B}, Discard this card: Draw a card.)

Market

Aftermath (Cast this spell only from your graveyard. Then exile it.)
Draw two cards, then discard two cards.

Farm

Destroy target attacking or blocking creature.

Farm // Market

Steadfast Sentinel

Vigilance
Eternalize {4}{W}{W} ({4}{W}{W}, Exile this card from your graveyard: Create a token that's a copy of it, except it's a 4/4 black Zombie Human Cleric with no mana cost. Eternalize only as a sorcery.)

Sidewinder Naga

As long as you control a Desert or there is a Desert card in your graveyard, Sidewinder Naga gets +1/+0 and has trample.

Hollow One

This spell costs {2} less to cast for each card you've cycled or discarded this turn.
Cycling {2} ({2}, Discard this card: Draw a card.)

Greater Sandwurm

Greater Sandwurm can't be blocked by creatures with power 2 or less.
Cycling {2} ({2}, Discard this card: Draw a card.)

Authority

Aftermath (Cast this spell only from your graveyard. Then exile it.)
Tap up to two target creatures your opponents control. Creatures you control gain vigilance until end of turn.

Appeal

Until end of turn, target creature gains trample and gets +X/+X, where X is the number of creatures you control.

Appeal // Authority

Moaning Wall

Defender
Cycling {2} ({2}, Discard this card: Draw a card.)

Return

Aftermath (Cast this spell only from your graveyard. Then exile it.)
Exile target card from a graveyard. Create a 2/2 black Zombie creature token.