Cyberdyne Systems:
Requires
Null Rod must be on the battlefield. Mycosynth Lattice must be on the battlefield.
Steps
Mycosynth Lattice turns all permanents into artifacts.
Activated abilities can not be activated due to Null Rod.
Results
Nobody can activate the abilites of any permanent on the battlefield.
Requires
Mycosynth Lattice must be on the battlefield. Hurkyl's Recall must be in hand. Mana needed: 1u
Steps
Cast Hurkyl's Recall by paying 1u, causing an opponent to return all permanents they own to their hand.
Results
Return all permanents target opponent controls to their hand.
Requires
Karn, the Great Creator must be on the battlefield. Mycosynth Lattice must be on the battlefield.
Steps
Mycosynth Lattice turns all permanents into artifacts.
Activated abilities of permanents your opponent control can not be activated due to Karn, the Great Creator.
Results
Lock on all activated abilities of permanents your opponents control (including lands).
Requires
Mephidross Vampire must be on the battlefield. Triskelion must be on the battlefield. Triskelion has at least one +1/+1 counter on it.
Steps
Activate Triskelion by removing a +1/+1 counter from it, dealing 1 damage to any creature an opponent controls.
Triskelion triggers, putting a +1/+1 counter on itself.
Repeat as desired.
You may also repeat this loop whenever a creature enters the battlefield under an opponent's control.
Results
Destroy all creatures that enter the battlefield under an opponent's control. Destroy any number of creatures opponents control. Infinite damage to creatures.
Requires
Mikaeus, the Unhallowed must be on the battlefield. Triskelion must be on the battlefield. Triskelion has at least two +1/+1 counters on it.
Steps
If Triskelion has at least three +1/+1 counters on it, activate Triskelion by removing a +1/+1 counter from it, dealing 1 damage to any target.
Repeat step 1 until there are two +1/+1 counters remaining on Triskelion.
Activate Triskelion by removing a +1/+1 counter from Triskelion, dealing 1 damage to itself.
Repeat step 3 an additional time.
Triskelion dies.
Triskelion's undying ability triggers, returning it to the battlefield with an additional +1/+1 counter on it.
Repeat.
Results
Infinite damage. Infinite death triggers. Infinite ETB. Infinite LTB.
Requires
Walking Ballista must be on the battlefield. Mikaeus, the Unhallowed must be on the battlefield. Walking Ballista on the battlefield with a +1/+1 counter on it.
Steps
Activate Walking Ballista's last ability by removing a +1/+1 counter from it, dealing 1 damage to itself.
Walking Ballista dies, triggering its undying ability, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
Repeat.
Results
Infinite death triggers. Infinite ETB. Infinite LTB.
Requires
Mephidross Vampire must be on the battlefield. Walking Ballista must be on the battlefield. Walking Ballista has at least two +1/+1 counters on it.
Steps
Activate Walking Ballista's second ability by removing a +1/+1 counter from it, dealing 1 damage to any creature an opponent controls.
Walking Ballista triggers, putting a +1/+1 counter on itself.
Repeat as desired.
You may also repeat this loop whenever a creature enters the battlefield under an opponent's control.
Results
Destroy all creatures that enter the battlefield under an opponent's control. Destroy any number of creatures opponents control. Infinite damage to creatures.