First, none of the cards are new effects
Once per turn, if you control no monsters: You can Special Summon 1 "Gradius" from your hand or GY, and if you do, it gains 800 ATK
The front is a great mill
Lets move right ahead to trying to take advantage of our graveyard in a more proactive fashion: Creatures (36) 4 Llanowar Elves 4 Merfolk Branchwalker 2 Ghalta, Primal Hunger 4 Steel Leaf Champion 4 Stitcher's Supplier 4 Nullhide Ferox 4 Glowspore Shaman 4 Charnel Troll 4 Pelt Collector 2 Plaguecrafter Lands (24) Sideboard Running 36 creatures and 24 lands isnt often right, but Charnel Troll is a huge payoff for hitting a lot of creatures with Stitchers Supplier, Glowspore Shaman, and Merfolk Branchwalker
They dont get their spell this turn, forcing them to reinvest mana, and they cant draw anything better than what you hit with this spell
until the end of this turn, change its ATK to 0, also negate that face-up monster's effects