Witch-maw Superfriends (EDH / Commander)

High synergy combo deck.

Synergy:
Tamiyo, The Moon Sage + Rewind
Vorinclex, Monstrous Raider + Just about everything else

Ca!-Ca!-Ca!-COMBO BREAKER!!

Volrath, the Shapestealer | Viridian Joiner | Gilder Bairn

Prerequisites

All permanents on the battlefield
Volrath does not have summoning sickness
Viridian Joiner and Glider Bairn have at least one counter on them
(1 magic symbol)   Magic Symbol (1) available

Steps

Activate Volrath by paying (1 magic symbol)   Magic Symbol (1), causing Volrath to become a copy of Viridan Joiner until your next turn
Activate Volrath by tapping it, adding at least seven (G magic symbol)   Magic Symbol (G)
Activate Volrath by paying (1 magic symbol)   Magic Symbol (1), causing Volrath to become a copy of Glider Bairn until end of turn
Activate Volrath by paying (2 magic symbol)   Magic Symbol (2) (GU magic symbol)   Magic Symbol (GU) and untapping it, proliferating all the counters on target permanent
Repeat from step 2

Results

Infinite green mana
Infinite proliferate

Teferi, Temporal Archmage | The Chain Veil | Carth the Lion

Prerequisites

All permanents on the battlefield
You control up to three permanents that can tap to produce at least (5 magic symbol)   Magic Symbol (5)
(4 magic symbol)   Magic Symbol (4) available

Steps

Activate The Chain Veil by paying (4 magic symbol)   Magic Symbol (4) and tapping it, allowing an extra activation of all your planeswalkers' abilities until end of turn
Activate Teferi's second loyalty ability by removing zero loyalty counters from it, untapping The Chain Veil and up to three permanents that can tap to produce at least (5 magic symbol)   Magic Symbol (5)
Activate up to three permanents by tapping them, adding at least (5 magic symbol)   Magic Symbol (5)
Repeat

Results

Infinite mana permanents you control can produce
Infinite activations of planeswalker abilities

Falco Spara, Pactweaver | Devoted Druid | Sensei's Divining Top

Prerequisites

All permanents on the battlefield
Devoted Druid does not have summoning sickness

Steps

Activate Devoted Druid's first ability by tapping it, adding (G magic symbol)   Magic Symbol (G)
Activate Devoted Druid's second ability by putting a -1/-1 counter on it, untapping it
Activate Sensei's Divining Top's second ability by tapping it, causing you to draw a card and put Sensei's Divining Top on top of your library
Cast Sensei's Divining Top from the top of your library by paying (G magic symbol)   Magic Symbol (G) and removing a -1/-1 counter from Devoted Druid
Repeat

Results

Infinite card draw
Infinite draw triggers
Near-infinite storm count

Atraxa, Praetors' Voice | Myojin of Towering Might | Sage of Hours

Prerequisites

All permanents on the battlefield
Myojin has at least one indestructible counter on it

Steps

At the beginning of your end step, Atraxa triggers, putting an indestructible counter on Myojin
Activate Myojin by removing an indestructible counter from it, putting five +1/+1 counters on Sage of Hours and the remaining three +1/+1 counters on any creature(s) you control
Activate Sage of Hours by removing all +1/+1 counters from it, causing you to take an extra turn after this one
Repeat each turn

Results

Infinite turns

Mystic Forge | Sensei's Divining Top | Foundry Inspector

Prerequisites

All permanents on the battlefield

Steps

Activate Sensei's Divining Top by tapping it, drawing a card and then putting Sensei's Divining Top on top of your library
Cast Sensei's Divining Top from the top of your library by paying (0 magic symbol)   Magic Symbol (0)
Repeat

Results

Infinite card draw
Near-infinite storm count