(8/7/2020) Players can't take actions in between the time you choose the lands and the time you destroy them
Thats literally any kind of token, including treasure tokens - which are really easy to create thanks to the popularity of the mechanic, and cost nothing to sacrifice, too
Rush of Dread often eats part of a threatening board while drawing a card, and its just cool
There are a bunch of ramp and card draw creatures, too
Lightning, Army of One Legendary Creature Human Soldier First strike, trample, lifelink Stagger Whenever Lightning deals combat damage to a player, until your next turn, if a source would deal damage to that player or a permanent that player controls, it deals double that damage instead
Mardu is also the perfect home for artifact token synergies for those Robot tokens