Most "Vision HERO" monsters wear helmets with a singular lens where the face would be, and have an almost robotic appearance.
The playing style of the "Vision HEROes" consists of essentially using the low-Level "Vision HEROes" to set the field to Summon the high-Level ones, either by Tribute Summon or Fusion Summon.
Most of the low-Level "Vision HEROes" have low ATK/DEF and share the following effects: when the player takes damage, they can be moved from the Graveyard to the player's Spell & Trap Card Zone as "visions" or "mirages" (in Japanese, Aster calls them "幻影", which is written with the Kanji for "phantom" or "illusion", but read as "vision"; hence, the name of the archetype). "Vision HEROes" can be Tributed to Special Summon 1 "Vision HERO" monster from the controller's Spell & Trap Card Zone. When that is done an effect unique to the particular "Vision HERO" activates. There are a few exceptions, such as "Vision HERO Gravito", who exists solely to Special Summon "Vision HEROes" from the Spell & Trap Card Zone.
The archetype contains several cards to send "Vision HEROes" to the Graveyard so that they can later become "visions", like "Vision HERO Faris", and to manipulate the "Vision HEROes" which are currently "visions", such as "Vision Release". Once the player gathers "Vision HEROes" in their Spell & Trap Card Zone, they can Special Summon them to Tribute Summon high-Level monsters such as "Vision HERO Witch Raider", or fuse them into powerful Fusion Monsters such as "Vision HERO Trinity".
So far, only the Fusion "Vision HEROes" have been released in the TCG/OCG, so they have been revamped to support "HERO" monsters in general rather than just "Vision HEROes".