Untap, upkeep, attack with the Griffin for 2, Swamp, Ravenous Rats (you get to discard a card!), Metathran Zombie, Done.
Spiderman: 18
Hand: 9
(T,U) Swamp
(T) Plains
(U) Forest
(T) Mt
(T) Island
(U) Prison Barricade (Creature-Wall, 1/3, defender) W
(T) Razorfoot Griffin (Creature-Griffin, 2/2, flying, first strike) W
(U) Phyrexian Reaper (Creature-Zombie, 3/3, whenever ~ becomes blocked by a green creature, destroy that creature. It can't be regenerated) B
(S) Ravenous Rats (Creature-Rat, 1/1)
(S) Metathran Zombie (Creature-Zombie, 1/1, B: regen ~)
Graveyard: Addle
Mooseman: 18 (16?)
Hand: 10 (9?)
(TT) Swamp 2x
(T) Mountain
(T) Plains
(T) Forest
(U) Island
(U) Llanowar Knight Creature - Elf Knight 2/2 : Protection from black. WG
(U) Galina's Knight Creature - Merfolk Knight 2/2 : Protection from red. WU
(U) Metathran Zombie Creature - Zombie P/T: 1/1 : B: Regenerate. U
(U) Marauding Knight Creature - Knight 2/2 : Protection from white, Marauding Knight gets +1/+1 for each Plains your opponents control. B
(U) Duskwalker Creature - Minion P/T: 3/3 w/Fear. was Kicked. B
Graveyard: Ancient Kavu, card from hand?