
Nether Blast
An exploding pulse deals damage to enemies and structures in the area. Deals 65% damage to structures.
Abilities, roles and builds with an explanation for every purchase.

HERO GAME PLANI destroy towers with magic, place Nether Ward, and choose whom to use Life Drain on.
A skilled spellcaster, Pugna turns an enemy's power against them, breaking down their defenses and fortifications. While his ward strikes nearby foes who dare to use magic, Pugna drains their life to prepare for the next assault.
My recommendation is a starting point. We choose another position together with the team and for its needs.
I contribute through laning, control and movement. I adapt the expensive core route to my budget.
Levels, lane control and joining the team at the right moment matter.
This is an editorial starting plan based on hero mechanics. It is not presented as a match I have already tested or a popularity ranking.
Here is my initial plan: I do my role's job first, then choose the items the team needs. I adapt the order and expensive purchases to the opponent.

Provide mana for laning and regular ability use.

Lets you use targeted abilities and items from a safer distance.

Adds a protective tool and hides the chosen ally; invisibility does not replace escaping detection.

Moves me or an ally out of danger; direction depends on the target's facing.

Unlocks or upgrades Life Drain. The exact effects are shown below in the abilities section.

I do not assign one ‘correct’ minute to every purchase. I look at my gold, the next fight and the problem: am I missing mana, target access, control or protection? If an expensive slot will arrive too late, I get a useful answer earlier.
Original Valve icons and descriptions. Cooldowns and mana are shown by level from the data snapshot; talents and upgrades can change the values.

An exploding pulse deals damage to enemies and structures in the area. Deals 65% damage to structures.

A powerful banishing spell that slows a unit and renders it unable to attack or be attacked. Healing on affected allies is increased, while afflicted enemies take extra magic damage instead.

Pugna places a Nether Ward at the target location. The ward will fire at any enemy hero who casts a spell dealing base damage plus the damage multiplier of the mana spent by the enemy hero.
Pugna places a Nether Ward at the target location. The ward will fire at any enemy hero who casts a spell dealing base damage plus the damage multiplier of the mana spent by the enemy hero.
Increases cast range to 375.

CHANNELED — when cast on an enemy, provides vision of it and drains its life force, restoring the owner’s health.
CHANNELED - When cast on an enemy, Pugna drains health from the target enemy unit to heal himself and granting vision over the target. When cast on an ally, Pugna will drain his own health into his ally.
Reduces cooldown by 50 sec. Casting this ability on an enemy hero reduces its spell damage by 8% each second, up to a maximum of 75%, while increasing the owner’s spell damage up to 100%. When cast through Nether Ward, damage changes at a rate of 4%. This effect lasts 8 sec.
Allows this ability to be cast on the ward from Nether Ward to drain life from enemy heroes within a radius of 700 around it. When cast on the ward, the ability works at 75% of its normal strength and ends if the ward is destroyed.
These abilities are not necessarily available at the same time. I check the condition beside the name: innate ability, another form or an Aghanim purchase.

The hero can activate items and abilities while channeling spells.
The hero can activate items and abilities while channeling spells. The hero gains +1.5% spell damage for each tower destroyed.
These are fields from the official source. The hero's final values in the client account for attributes and other active mechanics.
Items, slang and real episodes help connect abilities with what happens in a match.