
Penitence
Damages enemy unit, forces it to move slower and lets allies attack it more quickly.
Abilities, roles and builds with an explanation for every purchase.

HERO GAME PLANI strengthen my team with units and auras and bring healing to dangerous moments in a fight.
Converting the creatures of the forest to his cause, Chen leads his makeshift armies to aid his team in battle. He assaults enemies with beasts while sending friends to safety. Then, when things seem darkest, he heals his allies wherever they may be.
My recommendation is a starting point. We choose another position together with the team and for its needs.
Help the lane, provide vision and keep the ally alive first; expensive upgrades follow the necessary team purchases.
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.

Provides early team sustain when there is not yet enough gold for Greaves.

Combine mana and health sustain for the team; useful in prolonged fights together.

Provides team protection against substantial magical damage.

Strengthens the hero’s healing plan and provides another source of restoration when needed.

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.

Damages enemy unit, forces it to move slower and lets allies attack it more quickly.

Takes control of an enemy or neutral creep, setting its maximum health to 400, increasing its damage and movement speed, and granting a portion of the gold that would have been earned for killing it.
Chen takes control of an enemy or neutral creep and receives a percentage of its bounty. Its maximum health is set to 400. Converted creeps will have increased movement speed and bonus damage. Chen may globally target his own creep if it has not taken damage in the last 3 seconds to unsummon it.
Allows you to control a number of ancient creeps equal to the ultimate’s level. Also increases the level of some creep abilities by 1.

Passively increases nearby allies’ health regeneration. Can be cast on an ally to increase their armor, all healing received and health regeneration.
Passively provides an aura that grants increased health regeneration. Can be cast on allies to provide them with bonus armor and increasing the healing and health regeneration they receive. If cast on Chen, all units controlled by Chen receive the buff.

Heals all allied heroes on the map as well as all units under Chen's control. A large heal is applied at first and a slow heal over time is applied for 10 seconds afterwards.
Heals all allied heroes on the map as well as all units under Chen's control. A large heal is applied at first and a slow heal over time is applied for 10 seconds afterwards.
Reduces the cooldown to 40 sec. and makes the ability channeled. After the initial heal, it can be channeled for another 6 sec. to grant nearby allies debuff immunity, +60% magic resistance and healing over time boosted by 200%. These effects do not apply to the caster.
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.

On respawning, the hero is joined by a zealot: a brave swordsman creep that can sacrifice itself to heal an ally or damage an enemy.
Whenever Chen respawns, he is joined by a Zealot, a melee warrior creep with the ability to sacrifice itself to heal or deal damage to an enemy. The Zealot receives Holy Persuasion's benefits and scales up with other lane melee creeps as game time increases and gains extra base damage. The Zealot respawns next to Chen. Zealot may be activated to teleport a unit under your control to Chen after a 6 second delay. If Chen is targeted, it will teleport all units you control. Taking damage from enemy heroes or their units will cancel the teleport.
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.