In FINAL FANTASY XVI, instead of calling upon a summon, the characters themselves transform into summons
An 8/8 flying, indestructible creature with vigilance is already a very strong reanimation target, but giving everything else you control indestructible can protect you from just about everything your opponents can throw at you
Each Assassin token can enter attacking a different player, planeswalker, or battle, and they don't need to be the same ones that the Assassins you control are attacking
Cards similar to Undercity Dire Rat include Wanted Scoundrels, Prosperous Innkeeper, Piggy Bank
There's likely to be several previews for November's Avatar: The Last Airbender set, and the Friday Preview Panel has already promised a deeper look at Lorwyn Eclipsed
For other sources of draw, I first recommend Ohran Frostfang