I particularly enjoy the instant ones
Zendikar is a harsh, dangerous plane, and threats can come from anywhere: from dangerous creatures, from outsiders, or from the land itself
So whenever a character is unable to do anything meaningful during their turn, they can just Accumulate for a slight power boost and free exp and JP when they'd otherwise just sit there doing nothing
Hear me out: We have a legendary Zealous Conscripts in the color of flickering, paired with the color of sacrifice outlets like Goblin Bombardment
Flying Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) When Stormwing Entity enters the battlefield, scry 2
Cards like Essence Channeler and Case of the Uneaten Feast complement this strategy well, and its not hard to draw a card every turn while beating down with this white creature