Wear / Tear A sideboard staple since its release, Wear / Tear deals with two problematic card types at the cost of one sideboard slot
1Camaraderie
Glinthorn Buccaneer, Broadside Bombardiers, Shao Jun, Sawblade Skinripper, even off-type solutions like Mayhem Devil or Ghirapur Aether Grid are all nice tools to accelerate games and give you and out if the table is a bit too strong to chip down with random pirate and vehicle swings
Smothering Tithe While it's gained new tools recently, white isn't a colour known for its mana ramp cards
The ramp comes in many forms, from Dragon cost reduction in Dragonlords ServantDragonlords Servant and Dragonspeaker ShamanDragonspeaker Shaman, to rocks like Arcane SignetArcane Signet and Atarka MonumentAtarka Monument, to land fetchers like CultivateCultivate and Sakura-Tribe ElderSakura-Tribe Elder
Delirium At the beginning of your end step, you may exile any number of cards from your graveyard with four or more card types among them