Chen

Bring a sentry or two to the lane to unblock the camps. Chen's laning impact is directly related to summon usage.

If you find Harpy Stormcrafter you will have massive kill potential with the slow from Penitence.

Aside from using summons to harass on the lane, you can gank with them, stack camps, control runes, block camps and even snipe couriers.

Keep an eye on the map and save your teammates in trouble by using Hand of God.

You want to group up early with your team and make use of your summons and auras to play aggressively.

When not much is happening on the map, you can split push with your summons.

Look to farm and play greedy once you have level 3 Holy Persuasion. An early timing on Vladmirs Offering into Solar Crest lets you snowball the game.

Against Chen, block off small and big pull camps either with a sentry or with your hero's body.

Chen lineups tend to powerspike in early to midgame. Don't buy greedy items.

Look to gank Chen as you will kill his army as well.

Items that reduce healing are good against Chen.

Chen lineups are good at taking early Roshan. Ward around Roshpit and check.

Be aware of Chen applying strong dispel with Hand of God if he has the level 25 talent.