It would seem to me that we each lose a life, as that is best for me.
Untap, upkeep, Swamp
Temporal Spring your Airship
Response?
Spidey: 3
Hand: 8
In Play:
(T,U) Island x2
(T,T) Mt x2
(T) Plains
(T) Forest
(T,T) Swamp x2
Manacles of Decay (Enchanted creature can't attack. B: Enchanted creature gets -1/-1 ueot. R: Enchanted creature can't block this turn)
(U) Reef Shaman (0/2, T: Target land's type becomes the basic land type of my choice ueot)
(U) Living Airship (2/3, flying, 2G: Regen ~)
Graveyard: Temporal Spring, Swamp, Forest, Necra Disciple, Dead Ringers, Vindicate
RFG:
Mooseman: 17
Hand: 5
Library:
In Play:
(T) Plains
(T) Island
(U) Swamp
(TUUU) Mountain
(UT) Forest
(U) Urborg Elf (1/1, T: Add G, U, or B)
(U) Putrid Warrior (2/2, Whenever Putrid Warrior deals damage, choose one - each player loses 1 life; or each player gains 1 life)
(U) Gaea's Skyfolk (2/2, Flying) *Manacled*
(U) Whirlpool Warrior (2/2, When Whirlpool Warrior comes into play, shuffle the cards from your hand into your library, then draw that many cards. [R], Sacrifice Whirlpool Warrior: Each player shuffles the cards from his or her hand into his or her library, then draws that many cards.)
Graveyard: Dwarven Landslide, Swamp, Strength of Night, Sylvan Messager, Bog Gnarr, Angelfire Crusader
RFG: