You chose targets and players, but everyone chosen has a non-basic land destroyed and then gets a free basic ramped tapped onto the battlefield, so they don't get a loss of a land
Youre probably fine running less nuclear answers, like Remorseful Cleric, Angel of Finality or Soul-Guide Lantern
Be sure to troll your opponent by letting them know they have time during your 2-3 extra turns to get a drink or take a bathroom break.
Running concurrently with the Murders at Karlov Manor preview season, heres every card revealed to be coming in Ravnica: Clue Edition
Boros uncommon gives +2/+2 until end of turn at a reasonable price of one mana, or it provides an expensive Lightning Helix, which will usually kill an opposing creature and help offset some damage with the lifegain
It gets better having relevant creature types and if you can also reliably grant Vigilance