Build Guide by Lieska
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Just a quick build for playing Rumble- keep him tanky, give him some slowing utility, be second into fights- he's a great offtank who can really mess up the other team's positioning and getaways provided he has survivability and staying power.
Rumble uses Heat generation rather than Mana or Energy. In essence, this is like "anti-mana" in that rather than draining a resource to cast spells, one is filled up until spell casting is prevented by it being full.
Rumble's passive, Junkyard Titan, is a really interesting mechanic- he gets bonus ability damage between 50-100 heat, silences himself for 6 seconds at 100 heat (but gains bonus magic damage on his melee attack) and all abilities (except ult, which is free) generate 20 heat. Keeping this in range is somewhat difficult during teamfights, but needs to be prioritized to keep him able to slow the team and have his abilities ready to use. If the enemy simply refuses to run, making Rumble overheat can be used a tactic to help finish them off quickly.
I use a pretty tanky rune setup on Rumble- Armor seals, AP/LVL Glyphs, and MPen Marks. Health Quints and it works fine for me.
Again, tanky is the way I'm building here. Rumble needs to get into the middle of a fight to be effective, not just sit on the edge. This is a great reason to pump up his Q and W early: a cone of damage and a shield go a long way. He isn't going to pump out that much damage, but he's great for chipping away at the enemy.
For summoner spells, I grab Flash and Ignite
- Flash is great for pursuit/fleeing, if you have to make a quick escape.
- Ignite I took on the off-chance it would be useful, and it turned out to be a good choice- one of Rumble's annoying traits is his being able to ALMOST finish off an enemy. Ignite lets you finish off the enemy to address this weakness.
Doran's Shield to start off with some good survivability in lane.
Mercury Treads to get off snares and stuns faster.
Rylai's- always Rylai's- this item's absolutely essential to playing Rumble effectively for the AP, health, and spell-based slows. All of his abilities are affected by its slowing power.
Haunting Guise for the magic penetration and AP.
Hextec is a great item for this build since your pretty hybrid + you can activate it if your getting low on health and need to do some extra damage.
Abyssal Scepter for the MR and AP + it reduces your enemies MR.
Trinity force replaces Dorans shield, it's also a pretty hybrid item.
Farming with Rumble is somewhat of a challenge to me. He needs to focus on the enemy champions in lane, but at the same time has a bit tougher a time generating a good creep score (CS) than other champions. This is opposite to someone like Heimerdinger, who does extremely well with CS. In order to farm effectively, last-hitting with your Q not activated might be the way to go- it seems that when I use my Q, I end up almost getting the last-hits but then lose it to friendly minion fire. I'll update this if I find a better way to farm.
Rumble is a great champ who adds a lot of utility to a team. His slows would sync really well with Ashe, and his ult is one of the most useful abilities in any positioning, running, or pursuing situations. While his overheating can be used strategically, I find that keeping him able to use his shield is more useful. Rumble is going to be called "not so useful" by the other team, because it's rarely realized that slows have so much of an effect on the way fights go (hence, why Ashe is popular).