Sorry; just read the advice sticky.
Here's the cards that do more than offer another body to throw at the enemy:
Buffs and other enhancements-Akki Avalanchers (Get +2/+0 for sacrificing a land)
-Akki Coalflinger (R and tap to give creatures first strike)
-Akki Drillmaster (Tap to give one guy haste)
-Akki Raider (Gets +1/+0 when a land is put into a graveyard from play)
-Akki Underminer (Player sacrifices a permanent if this guy damages him)
-Battle-Rattle Shaman (Gives one creature +2/+0)
-Bloodmark Mentor (Red creatures get first strike)
-Caterwauling Boggart (Your goblins must be blocked by at least two creatures)
-Flamestick Courier (2R and tap to give one Goblin +2/+2; can choose not to untap)
-Foundry Street Denizen (gets +1/+0 for each red creature that enters battlefield)
-Frenzied Goblin (R to make creature unable to block)
-Goblin Battle Jester (Target creature can't block when red spell is cast)
-Goblin Bushwhacker (R Kicker; creatures get +1/+0 and haste if kicker cost is paid)
-Goblin Chieftain (gives other Goblins +1/+1 and haste)
-Goblin
Fire Fiend (R for +1/+0)
-Goblin King (Other Goblins get +1/+1 and Mountainwalk)
-Goblin Lookout (Tap and sacrifice another Goblin to give other Goblins +2/+0)
-Goblin Shortcutter (Target creature can't block)
-Goblin Shrine (Goblins get +1/+0 if this is put on a basic
mountain)
-Goblin Taskmaster (1R = +1/+0 to one creature)
-Goblin Tunneler (Tap = creature w/power 2 or less is unblockable)
-Goblin Wardriver (Gives each other attacking creature +1/+0)
-Lavafume Invoker (Pay 8 to give other creatures +3/+0)
-Spitfire Handler (Pay R to give him +1/+0)
Extra Bodies-Beetleback Chief (2 tokens when deployed)
-Dragon Fodder (Two goblin tokens)
-Empty the Warrens (Two goblin tokens; Storm)
-Goblin
Rally (Four goblin tokens)
-Hordeling Outburst (Three goblin tokens)
-Krenko’s Command (Two goblin tokens)
-Krenko, Mob Boss (Deploy Goblins equal to number of creatures already deployed when he's deployed)
-Mogg Alarm (Two goblin tokens)
-Mogg War Marshal (1 token upon deployment or death)
Direct Damage-Blisterstick Shaman (deals 1 damage to player upon deployment)
-Emberwilde Augur (deals 3 damage upon sacrifice)
-Goblin Arsonist (Deals 1 damage upon death to target player)
-Goblin Bombardment (1 damage per goblin sacrificed)
-Goblin Dynamo (Deal either 1 damage or more damage with sacrifice)
-Goblin Grenade (Sacrifice goblin; 5 damage)
-Goblin Ruinblaster (pay kicker cost of R to destroy nonbasic land)
-Goblin War Strike (Damage = number of goblins you have in play)
-Grotag Siege-Runner (R and sacrifice = destroy defending Wall and 2 damage to Wall's controller)
-Hatchet Bully (2R and tap = 2 damage to target player)
-Kyren Sniper (1 damage to player)
-Mudbutton Torchrunner (3 damage to target player when it dies)
-Tar Pitcher (Tap and sacrifice another creature = 2 damage to player)