League-of-legends – Does middle lane experience range reach the wraith camp

Yes, it's worth it to pick another jungler. It does not necessarily have to be a counter-pick though, which probably needs some explanation:

• The advantages you gave for having a jungler hold for your team as well.
• What you labelled as 'more effective' does not really require a jungler at all (coordinate your team to kill the enemy jungler [wards!] or steal a buff)
• Your downsides are too situation dependent:
  1. If behind enemy lines, you better know what you're doing. You have to be sure that your champ can live up to the enemy jungler and you have to make double sure that all other enemies are on their lanes. While it is a downside, it's one for which the risk can be dealt with.
  2. If their jungler is higher level than you, then either you have to improve your jungling, or you got killed/hindered before. Shouldn't happen for the first creep round, unless someone messed up their early game (see below)
  3. same as 1. Do not get killed in the enemy jungle. The enemy jungler shouldn't be able to kill you (or you shouldn't enter his lair!) and if you get ganked it's your fault for losing track of your enemies. If you suspect only a single enemy missing that might come for you, you better be on your way back to your jungle.

Anyways, double jungle teams are quite a common thing, because neither team wants to ignore the advantages gained by having a jungler. However, it also means that your team should know how to deal with that situation. Here's a few tips for general two-junglers-play:

• Prepare for more ganks on both sides. For both junglers it's usually safer to gank, than to visit the other side's forest.
• Make your jungle starting save. Not getting harassed while you get your first buff is extremely important. The team should realize this and protect you. Place your mates into the forest access points near the river to watch out for early ganks. Only let them leave, once the buff is save.
• Of course, you can turn this around too and try to gank the enemy jungler with your team. Not just a single counter-picked champ, but 2+ champs.

As you can see, two junglers are possible, do make sense, and generally lead to very fast and intensive gameplay. Beware on random groups though, as a two-jungler game demands a lot more from all players and failure is easy to achieve in that setting.

For Summoner's Rift (5v5)

Baron Nashor - 15:00 initial, 7:00 respawn after death

Dragon - 2:30 initial, 6:00 respawn after death

Lizard/Golem - 1:55 initial, 5:00 respawn after entire camp death

Wolf camp - 1:40 initial, 1:00 respawn after entire camp death

Wraith camp - 1:40 initial, 0:50 respawn after entire camp death

Small golem camp - 1:40 initial, 1:00 respawn after entire camp death

For Twisted Treeline (3v3)

Ebonmaw (Dragon) Buff - 4:40 initial, 5:00 respawn

Grez (Lizard) Buff - 2:10 initial, 4:00 respawn

Ghast/Rabid Wolf Buff - 1:55 initial, 3:00 respawn after entire camp death

All small camps - 1:40 initial, 1:15 respawn after entire camp death

Not sure if these values are 100% accurate for Twisted Treeline after the recent jungle remake. If anyone has specific info, feel free to comment/edit it in.

Special Notes:

The values listed for the Ghast/Rabid Wolf and Lizard/Golem initial spawn are 1:55 officially in the wiki, however this appears to vary by about 1s and in practice they're actually a bit closer to 1:54 on the in-game clock

As indicated, a camp of neutrals will not respawn if even one mob is left alive in that particular camp. The timer to respawn will not start until the last mob is killed. For example, if I kill the Blue Golem at exactly 3:00 but leave the small casters alive, the Blue Golem will not respawn at 8:00, but rather, 5:00 after whenever those two casters are killed.

Also, unlike HoN / DotA, neutral mobs will still respawn if there is something obstructing their spawn point (e.g. a ward, an object like Shaco's JitB or a Nidalee trap, a player, etc.)