Whenever you cast a spell that targets Legolas, put a +1/+1 counter on Legolas.
Whenever you cast a spell that targets a creature you don't control, Legolas deals damage equal to its power to up to one target creature.
Pump Legolas with cheap auras and combat tricks to grow him into a huge body, then use his second ability to snipe opposing creatures every time you cast a spell targeting one of their creatures. He plays as a Voltron threat backed by free removal, closing games with commander damage while controlling the board.
Self-protecting and self-growing—every buff spell adds a permanent counter
Built-in repeatable removal that scales with his power
Cheap to cast and recast at 3 mana in mono-green
Reach plus high power dodges and punishes fliers and attackers
Mono-green lacks counterspells and instant-speed interaction outside of fight/protection
Vulnerable to board wipes and edict effects despite hexproof tricks
Removal ability requires targeting opponents' creatures, so it's blank against creatureless decks
Heavy reliance on the commander makes you fragile to repeated removal
Scales with your lands to push commander damage into one-shot range quickly.
Add efficient protection (Heroic Intervention, Tamiyo's Safekeeping) and reusable buff engines to chain triggers, plus trample and double-strike enablers to convert power into lethal damage. Lean into card draw like Garruk's Uprising and Beast Whisperer to refuel, and consider mana doublers (Nyxbloom Ancient) to recast him and cast multiple buff spells per turn.