Hear me out, I have an idea for the Jund insect spaceship commander from the precon:

The spaceship (seedship) places some new counter on lands you control (seed counters or whatever).

Tap, sacrifice a land with a seed counter: draw a card.

When you sacrifice a land with a seed counter on it, create a */* Eumidian Vanguard token, with power and toughness equal to the amount of lands in your graveyard.
With the draw ability you have to decide if you want to sac a fetch for another land or sac it with the ability to draw a card.

What do you think? I like the flavor, but maybe too weak?
Maybe incubate will make a return in some way?