Tropius can use leech seed and roost rather well and playing defensive and not offensive is not always a bad idea. This Tropius is the perfect blend of offense and defense.
99/83/97 are very good defensive stats for a UU pokemon so please don't just say he is easily outclassed. I actually used this for a while successfully.
http://www.smogon.com/dp/pokemon/tropius
[SET]
Name: Tropic Roost
Move 1: Leech Seed
Move 2: Roost
Move 3: Air Slash / Substitute
Move 4: Energy Ball / SolarBeam
Item: Leftovers
Ability: Chlorophyll
Nature: Bold / Calm
EVs: 252 Def / 96 SpA / 160 SpD
[SET COMMENTS]
<p>Tropius has very good defensive stats, especially when combined with Leech Seed and Roost. That alone makes Tropius a very sturdy wall. Although an offensive Solar Power Tropius is very powerful and usually the preferred choice, the defensive side of this Pokemon should not be overlooked.</p>
<p>This set is best executed by switching Tropius into an attack that it resists or is immune to, Leech Seeding the incoming Pokemon, and Roosting or attacking accordingly. It is recommended that Sunny Day support is used alongside this set. In the sun, Tropius receives a speed boost and Solar Beam no longer requires a turn in order to charge. Energy Ball is a viable alternative if Sunny Day support is not available.
</p>
<p>The choice between Air Slash and Substitute is a tough. Substitute gives Tropius an immunity to status. Roost and Leech Seed heal the damage taken in order to set up a Substitute, so Tropius can utilize this move more effectively. On the other hand, Air Slash kills any Grass-types who are immune to Leech Seed. Air Slash also gives Tropius a secondary STAB attack while greatly improving its type coverage. </p>
<p>Because Tropius already has gargantuan HP, EVs should be focused primarily on the defenses. With a lower HP stat, Leech Seed will heal more HP percentage wise, giving Tropius more chances to set up a Substitute or switch into Stealth Rock.</p>
99/83/97 are very good defensive stats for a UU pokemon so please don't just say he is easily outclassed. I actually used this for a while successfully.
http://www.smogon.com/dp/pokemon/tropius
[SET]
Name: Tropic Roost
Move 1: Leech Seed
Move 2: Roost
Move 3: Air Slash / Substitute
Move 4: Energy Ball / SolarBeam
Item: Leftovers
Ability: Chlorophyll
Nature: Bold / Calm
EVs: 252 Def / 96 SpA / 160 SpD
[SET COMMENTS]
<p>Tropius has very good defensive stats, especially when combined with Leech Seed and Roost. That alone makes Tropius a very sturdy wall. Although an offensive Solar Power Tropius is very powerful and usually the preferred choice, the defensive side of this Pokemon should not be overlooked.</p>
<p>This set is best executed by switching Tropius into an attack that it resists or is immune to, Leech Seeding the incoming Pokemon, and Roosting or attacking accordingly. It is recommended that Sunny Day support is used alongside this set. In the sun, Tropius receives a speed boost and Solar Beam no longer requires a turn in order to charge. Energy Ball is a viable alternative if Sunny Day support is not available.
</p>
<p>The choice between Air Slash and Substitute is a tough. Substitute gives Tropius an immunity to status. Roost and Leech Seed heal the damage taken in order to set up a Substitute, so Tropius can utilize this move more effectively. On the other hand, Air Slash kills any Grass-types who are immune to Leech Seed. Air Slash also gives Tropius a secondary STAB attack while greatly improving its type coverage. </p>
<p>Because Tropius already has gargantuan HP, EVs should be focused primarily on the defenses. With a lower HP stat, Leech Seed will heal more HP percentage wise, giving Tropius more chances to set up a Substitute or switch into Stealth Rock.</p>