If Basking Broodscale does not have a +1/+1 counter on it, activate Basking Broodscale's adapt ability by paying {1}{G}, putting a +1/+1 counter on it.
Otherwise, put a +1/+1 counter on Basking Broodscale using any other method.
Basking Broodscale triggers, creating a 0/1 Eldrazi Spawn creature token. 
Activate the Eldrazi Spawn by sacrificing it, adding {C}.
When the Eldrazi Spawn dies, Sadisitc Glee triggers, putting a +1/+1 counter on Basking Broodscale.
Repeat from step 3.

Infinite LTB

Infinite ETB

Infinite sacrifice triggers

Infinite death triggers

Infinite colorless mana

Infinite +1/+1 counters on Basking Broodscale

Basking Broodscale

Sadistic Glee

Activate Ashnod's Altar by sacrificing any other creature, adding {C}{C}.
When the creature dies, Sadisitc Glee triggers, putting a +1/+1 counter on Scurry Oak.
Scurry Oak triggers, creating a 1/1 Squirrel creature token.
Repeat.

Infinite +1/+1 counters on Scurry Oak

Scurry Oak

Ashnod's Altar

Activate Viscera Seer by sacrificing any other creature.
When the creature dies, Sadisitc Glee triggers, putting a +1/+1 counter on Herd Baloth.
Herd Baloth triggers, creating a 4/4 Beast creature token.
Resolve the Viscera Seer ability, causing you to scry 1.
Repeat.

Infinite scry 1

Infinite +1/+1 counters on Herd Baloth

Herd Baloth

Viscera Seer

Activate Ashnod's Altar by sacrificing any other creature you control, adding {C}{C}.
Sadistic Glee triggers, putting a +1/+1 counter on the creature it is attached to.
Animation Module triggers, causing you to pay {1} to create a 1/1 Servo artifact creature token.
Repeat.

Infinite +1/+1 counters on the creature with Sadistic Glee attached

Animation Module

Activate Ghave's first ability by paying {1} and removing a +1/+1 counter from a creature you control, creating a 1/1 Saproling creature token.
Activate Ashnod's Altar by sacrificing the Saproling, adding {C}{C}.
When the Saproling dies, Sadistic Glee triggers, putting a +1/+1 counter on the creature it is attached to.
Repeat.

Ghave, Guru of Spores

Activate Ghave's first ability by paying {1} and removing a +1/+1 counter from a creature you control, creating a 1/1 Saproling creature token.
Activate Utopia Mycon's second ability by sacrificing the Saproling, adding {1}.
When the Saproling dies, Sadistic Glee triggers, putting a +1/+1 counter on the creature it is attached to.
Repeat.

Utopia Mycon

Activate Phyrexian Altar by sacrificing any other creature you control, adding {1}.
Sadistic Glee triggers, putting a +1/+1 counter on the creature it is attached to.
Animation Module triggers, causing you to pay {1} to create a 1/1 Servo artifact creature token.
Repeat.

Phyrexian Altar

Activate Krark-Clan Ironworks by sacrificing any other artifact you control, adding {C}{C}.
Sadistic Glee triggers, putting a +1/+1 counter on the creature it is attached to.
Animation Module triggers, causing you to pay {1} to create a 1/1 Servo artifact creature token.
Repeat.

Krark-Clan Ironworks

Cast Blood Pet by paying its mana cost.
Activate Blood Pet by sacrificing it, adding {B}.
When Blood Pet dies, Sadistic Glee triggers, putting a +1/+1 counter on Evolution Witness.
Evolution Witness triggers, returning Blood Pet from your graveyard to your hand.
Repeat.

Infinite storm count

Infinite +1/+1 counters on a creature

Evolution Witness

Blood Pet

Activate Ulasht by paying {1} and removing a +1/+1 counter from it, creating a 1/1 Saproling creature token.
Activate Ashnod's Altar by sacrificing the Saproling, adding {C}{C}.
When the Saproling dies, Sadistic Glee triggers, putting a +1/+1 counter on Ulasht.
Repeat.

Ulasht, the Hate Seed

Activate Ulasht by paying {1} and removing a +1/+1 counter from it, creating a 1/1 Saproling creature token.
Activate Utopia Mycon's second ability by sacrificing the Saproling, adding {1}.
When the Saproling dies, Sadistic Glee triggers, putting a +1/+1 counter on Ulasht.
Repeat.

Combos with "Sadistic Glee"