(2014, July 23) Capture The Flag

/scoreboard objectives add Flag dummy
/scoreboard objectives add Health health
/gamerule keepInventory true
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/scoreboard players remove @a[score_Flag_min=1] Flag 1

/scoreboard players set @a Flag 2 {Inventory:[{id:minecraft:banner}]}

/execute @a[score_Flag_min=1,score_Health=0,score_Health_min=0] ~ ~ ~ /setblock ~ ~ ~ standing_banner

/execute @a[score_Flag_min=1,score_Health=0,score_Health_min=0] ~ ~ ~ /clear @a minecraft:banner