Sven

Teams and Other Scoreboard Commands:
scoreboard objectives add Awesomeness dummy
scoreboard teams add Radiant Radiant
scoreboard teams option Radiant color dark_blue
scoreboard teams add Dire
scoreboard teams option Dire color dark_red
scoreboard teams add Neutral
scoreboard teams option Neutral color gray
/scoreboard objectives add damageGiven stat.damageDealt

Choosing Sven:
/scoreboard players set @p Awesomeness 1
/give @p[score_Awesomeness_min=1] minecraft:fishing_rod 1 0 {Unbreakable:1,display:{Name:"Storm Hammer"}}
/give @p[score_Awesomeness_min=1] minecraft:iron_axe 1 0 {display:{Name:"Great Cleave"}}
/give @p[score_Awesomeness_min=1] minecraft:lit_pumpkin 1 0 {display:{Name:"Warcry"}}
/give @p[score_Awesomeness_min=1] minecraft:golden_apple 1 0 {Unbreakable:1,display:{Name:"Gods Strength"}}
/scoreboard teams join Radiant @p[score_Awesomeness_min=1]
/say Sven stands ready

Storm Hammer
/testfor @p[score_Awesomeness_min=1] {SelectedItemSlot:0,Inventory:[{Slot:0b,tag:{display:{Name:"Storm Hammer"}}}]}
/testfor @e[name=unknown]
/execute @e[name=unknown] ~ ~ ~ /effect @p[team=!Radiant,r=3] 2 2 99
/execute @e[name=unknown] ~ ~ ~ /effect @p[team=!Radiant,r=3] 4 2 128
/execute @e[name=unknown] ~ ~ ~ /effect @p[team=!Radiant,r=3] 18 2 99
/execute @e[name=unknown] ~ ~ ~ /effect @p[team=!Radiant,r=3] 7 1 1
/kill @e[name=unknown]

Great Cleave
/testfor @p[score_damageGiven_min=1,score_Awesomeness_min=1]
/execute @p[score_Awesomeness_min=1] ~ ~ ~ /effect @e[team=!Radiant,r=3] 7 1 1
/scoreboard players set @p[score_Awesomeness_min=1] damageGiven 0

Warcry
/testfor @p[score_Awesomeness_min=1] {SelectedItemSlot:2,Inventory:[{Slot:2b,tag:{display:{Name:"Warcry"}}}]}
/execute @p[score_Awesomeness_min=1] ~ ~ ~ /effect @e[team=!Dire,r=3] 11 8 1
/execute @p[score_Awesomeness_min=1] ~ ~ ~ /effect @e[team=!Dire,r=3] 1 8 1

God's Strength
/testfor @p[score_Awesomeness_min=1] {SelectedItemSlot:3,Inventory:[{Slot:3b,tag:{display:{Name:"Gods Strength"}}}]}
/execute @p[score_Awesomeness_min=1] ~ ~ ~ /effect @e[team=!Dire,r=1] 5 25 1