Sliver Swarm Precon Upgrade: 30 Budget Swaps for $19.11

Upgraded Decklist

Your upgraded Sliver Swarm.

100 / 100 cards · 30 new

Creatures 46$98.28

Creatures continued

Instants 1$0.99

1Swords to PlowsharesNEW$0.99

Sorceries 7$10.87

Artifacts 7$8.86

Enchantments 1$0.26

1Descendants' Fury$0.26

Lands 37$9.70

Lands continued

Upgrade Guide

Swap these cards.

10 swaps · All suggested swaps

Cards to swapMaximum per added card · USD

About 40% of the recorded Sliver Gravemother decks are this precon almost unchanged.

All suggested swaps: 30 swaps. No further swaps meet the model’s play-rate, role, and price criteria.

Spells 17

$13.77

Spells to add, each with the card it replaces
#	Add	Price	Take out	Your call
1	Homing Sliver Tutors synergy fills a gap	$0.27	Crippling Fear Board Wipes	Skip the new card Keep the old card
2	Predatory Sliver Theme/Synergy synergy	$0.49	Blade Sliver Theme/Synergy	Skip the new card Keep the old card
3	Muscle Sliver Theme/Synergy synergy	$0.91	Rukarumel, Biologist Theme/Synergy	Skip the new card Keep the old card
4	Virulent Sliver Theme/Synergy synergy	$0.34	Icon of Ancestry Theme/Synergy	Skip the new card Keep the old card
5	Basal Sliver Ramp synergy	$0.74	Clot Sliver Theme/Synergy	Skip the new card Keep the old card
6	Chromatic Lantern Ramp synergy staple	$0.43	Cleansing Nova Board Wipes	Skip the new card Keep the old card
7	Heart Sliver Theme/Synergy synergy	$1.45	Windfall Card Draw	Skip the new card Keep the old card
8	Horned Sliver Theme/Synergy synergy	$1.91	Decimate Tgt Removal	Skip the new card Keep the old card
9	Thrumming Hivepool Theme/Synergy synergy	$1.04	Bonesplitter Sliver Theme/Synergy	Skip the new card Keep the old card
10	Swords to Plowshares Tgt Removal synergy staple	$0.99	Hollowhead Sliver Card Draw	Skip the new card Keep the old card
11	Leeching Sliver Theme/Synergy synergy	$0.56	Titan of Littjara Card Draw	Skip the new card Keep the old card
12	Sedge Sliver Theme/Synergy synergy	$1.17	Cleaving Sliver Theme/Synergy	Skip the new card Keep the old card
13	Ward Sliver Protection synergy	$0.35	Pillar of Origins Ramp	Skip the new card Keep the old card
14	Shadow Sliver Theme/Synergy synergy	$0.58	Might Sliver Theme/Synergy	Skip the new card Keep the old card
15	Thorncaster Sliver Tgt Removal synergy	$1.76	Blur Sliver Theme/Synergy	Skip the new card Keep the old card
16	Dormant Sliver Card Draw synergy	$0.41	For the Ancestors Card Draw	Skip the new card Keep the old card
17	Faithless Looting Card Draw synergy	$0.37	Capricious Sliver Card Draw	Skip the new card Keep the old card

Lands 13

$5.34

Lands to add, each with the card it replaces
#	Add	Price	Take out	Your call
1	Yavimaya Coast Lands synergy staple	$0.31	Rocky Tar Pit Lands	Skip the new card Keep the old card
2	Ancient Ziggurat Lands synergy staple	$0.35	Flood Plain Lands	Skip the new card Keep the old card
3	Karplusan Forest Lands synergy staple	$0.40	Mountain Valley Lands	Skip the new card Keep the old card
4	Battlefield Forge Lands synergy staple	$0.21	Grasslands Lands	Skip the new card Keep the old card
5	Brushland Lands synergy staple	$0.37	Irrigated Farmland Lands	Skip the new card Keep the old card
6	Caves of Koilos Lands synergy staple	$0.30	Scattered Groves Lands	Skip the new card Keep the old card
7	Evolving Wilds Lands synergy staple	$0.09	Sheltered Thicket Lands	Skip the new card Keep the old card
8	Cascading Cataracts Lands synergy staple	$1.75	Ash Barrens Lands	Skip the new card Keep the old card
9	Shivan Reef Lands synergy staple	$0.22	Mystic Monastery Lands	Skip the new card Keep the old card
10	Llanowar Wastes Lands synergy staple	$0.59	Nomad Outpost Lands	Skip the new card Keep the old card
11	Crumbling Necropolis Lands synergy staple	$0.33	Savage Lands Lands	Skip the new card Keep the old card
12	Arcane Sanctum Lands synergy staple	$0.32	Forest Lands	Skip the new card Keep the old card
13	Terramorphic Expanse Lands synergy staple	$0.10	Plains Lands	Skip the new card Keep the old card

To change a swap, select another addition or keep the proposed cut, then update suggestions. Open each card to read its abilities.

Lands. 37 lands, as sold and after these swaps; typical builds run 37. Change the number of basics in the deck workspace.

Reset to the default upgrade

Compare deck statistics

What the upgrade changes.

The deck as sold compared with the upgraded deck
Statistic	As sold	Upgraded
Singles value	$155.97	$158.49
Average mana value	3.16	2.94
Game Changers	0	0
Combos	0	0
Deck match	97%	90%

Mana curve

Mana value 0: 0 as sold, 0 upgraded
Mana value 1: 3 as sold, 6 upgraded
Mana value 2: 21 as sold, 23 upgraded
Mana value 3: 16 as sold, 16 upgraded
Mana value 4: 12 as sold, 8 upgraded
Mana value 5: 8 as sold, 7 upgraded
Mana value 6: 3 as sold, 3 upgraded
Mana value 7+: 0 as sold, 0 upgraded

Each pair of bars is the deck as sold (gray) and the upgraded deck (blue). The curve and the average cover Sliver Gravemother and every nonland card. Game Changers are the cards on the official Commander Game Changers list. Combos are the two- to four-card combos from Commander Spellbook that the 100 cards hold every piece of. Deck match says how much of what this commander’s decks usually play the list captures.

Roles

Cards per role: as sold, typical for this commander, and upgraded
Role	As sold	Typical	Upgraded
Lands	37	37	37
Ramp	11	12	12
Card draw	9	8	6
Targeted removal	4	4	5
Board wipes	3	2	1
Counterspells	0	0	0
Protection	3	4	4
Tutors	1	2	2

Typical is the median count across this commander’s decks. Each card counts toward its main role only. A swap never takes a role below 80% of its typical count unless the new card fills the same role.