4 damage to you then.
Thunderblade Charge (1RR; Sorcery; ~ deals 3 damage to target creature or player. Whenever one or more creatures you control deal combat damage to a player, if ~ is in your graveyard, you may pay 2RRR. If you do, you may cast it without paying its mana cost.) your Spider.
Done.
Mooseman:12
Hand: 1
Library: 25
Battlefield:
(UUUU) Swamp x4
(UUU) Forest x3
Graveyard: Swat, Doom Blade, Treacherous Urge, Metallic Sliver, Titanic Bulvox, Child of Night, Feral Shadow, Metallic Sliver, Canopy Spider
Exile:
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Rokapoke: 11
Hand: 3
Library: 21
Battlefield:
(TTU) Mountain x3
(TU) Forest x2
Armor of Thorns (Enchantment -- Aura; You may cast ~ as though it had flash. If you do, it gets sacrificed at the beginning of the next cleanup step. Enchanted nonblack creature gets +2/+2.)
(T) Mogg Maniac (3/3; Goblin; Whenever ~ is dealt damage, it deals that much damage to target opponent.) ** THORNY **
(T) Lowland Basilisk (1/3; Basilisk; Whenever ~ deals damage to a creature, destroy that creature at end of combat.)
(U) Prodigal Pyromancer (1/1; Human Wizard; T: ~ deals 1 damage to target creature or player.)
(U) Locust Swarm (1/1; Insect; Flying G: Regenerate ~. G: Untap ~. Activate this ability only once each turn.)
Graveyard: Beastbreaker of Bala Ged, Hulking Ogre, Mudbrawler Raiders, Mogg Flunkies, Thunderblade Charge (2RRR),
Exile: