Activate the Equipment by paying {0}, targeting Syr Gwyn.
Crackdown Construct triggers, giving itself +1/+1 until end of turn.
Resolve the equip ability, attaching the Equipment to Syr Gwyn.
Repeat.

Infinitely large creature until end of turn

Syr Gwyn, Hero of Ashvale

Crackdown Construct

Activate Lotus Ring's equip ability by paying {0}, attaching it to the Knight.
Activate the Knight by tapping and sacrificing it, adding three mana of any color.
Cast the Knight from your graveyard by paying its mana cost.
Repeat.
If the Knight has mana value 2 or less, this combo nets infinite mana.

Infinite colored mana

Infinite death triggers

Infinite creature ETB

Infinite creature LTB

Infinite creature sacrifice triggers

Infinite storm count

Knight Creature with MV<=3

Haakon, Stromgald Scourge

Lotus Ring

Anger

Activate Skullclamp's equip ability by paying {0}, attaching it to Memnite.
Memnite dies as a state-based action due to having zero toughness, triggering Enduring Renewal and Skullclamp.
Resolve the Enduring Renewal trigger, returning Memnite from your graveyard to your hand.
Resolve the Skullclamp trigger, causing you to draw two cards.
Cast Memnite by paying {0}.
Repeat.

Infinite card draw

Infinite draw triggers

Near-infinite death triggers

Near-infinite creature ETB

Near-infinite creature LTB

Near-infinite creature sacrifice triggers

Near-infinite storm count

Enduring Renewal

Memnite

Skullclamp

Conspiracy

Maskwood Nexus

Combos with "Syr Gwyn, Hero of Ashvale"