there are plenty of ways to deal with both of those cards, Wear//tear and a few others, and my list while not truely zombardment relies less on gy as carrion feeder/ gravecrawler
The mana base and some of the cards like bolt are sorta being changed around. I have been fiddling with running blue to run cantrips to add some consistancy to the deck and not rely soly on top deck and only splashing red for bombardment. but I have mostly been centering the lists around hidden stock pile.
I made a list mostly in Mardu colors dropping green as drs is mainly the only reason to splash I have yet to make a sideboard tell me what you guys think would appreciate any feedback you guys had.
1 Umezawa's Jitte
2 Blood Artist
4 Bloodghast
2 Dark Confidant
2 Bitterblossom
1 Contamination
1 Goblin Bombardment
2 Grave Pact
4 Hidden Stockpile
1 Terminate
4 Cabal Therapy
2 Diabolic Intent
4 Faithless Looting
4 Lingering Souls
3 Thoughtseize
2 Badlands
2 Bloodstained Mire
4 Marsh Flats
1 Mountain
1 Phyrexian Tower
1 Plateau
2 Polluted Delta
2 Scrubland
2 Swamp
1 Undiscovered Paradise
1 Verdant Catacombs
1 Animate Dead
1 Ashnod's Altar
1 Azusa, Lost but Seeking
1 Baleful Strix
1 Birds of Paradise
1 Caustic Caterpillar
1 Command Tower
1 Commander's Sphere
1 Consecrated Sphinx
1 Counterspell
1 Cryptic Command
1 Cyclonic Rift
1 Damnation
1 Deadeye Navigator
1 Deathrite Shaman
1 Diabolic Tutor
1 Dimir Signet
1 Disallow
1 Elephant Grass
1 Eternal Witness
1 Executioner's Capsule
1 Fleshbag Marauder
7 Forest
1 Glacial Chasm
1 Hinterland Harbor
1 Hostage Taker
8 Island
1 Kiora, Master of the Depths
1 Kodama's Reach
1 Lightning Greaves
1 Llanowar Wastes
1 Misty Rainforest
1 Muldrotha, the Gravetide
1 Mulldrifter
1 Mystic Confluence
1 Mystic Remora
1 Nevinyrral's Disk
1 Nissa, Steward of Elements
1 Opulent Palace
1 Overgrown Tomb
1 Peregrine Drake
1 Pernicious Deed
1 Phantasmal Image
1 Polluted Delta
1 Protean Hulk
1 Putrefy
1 Reliquary Tower
1 Rhystic Study
1 River Kelpie
1 Sakura-Tribe Elder
1 Satyr Wayfinder
1 Seal of Doom
1 Seal of Primordium
1 Seal of Removal
1 Secrets of the Dead
1 Shriekmaw
1 Sidisi, Undead Vizier
1 Simic Growth Chamber
1 Simic Signet
1 Siren Stormtamer
1 Sol Ring
1 Spore Frog
1 Strip Mine
1 Sultai Ascendancy
1 Sultai Charm
1 Sunken Hollow
1 Survival of the Fittest
6 Swamp
1 Sylvan Safekeeper
1 Taigam, Sidisi's Hand
1 Tatyova, Benthic Druid
1 The Gitrog Monster
1 Toxic Deluge
1 Tropical Island
1 Unbridled Growth
1 Victimize
1 Villainous Wealth
1 Viscera Seer
1 Wasteland
1 Woodland Cemetery
1 Yavimaya Coast