Thran Dynamo

Land Tax

At the beginning of your upkeep, if an opponent controls more lands than you, you may search your library for up to three basic land cards, reveal them, put them into your hand, then shuffle.

Don't Have

Catastrophe

Destroy all lands or all creatures. Creatures destroyed this way can't be regenerated.

Blind Obedience

Extort (Whenever you cast a spell, you may pay {W/B}. If you do, each opponent loses 1 life and you gain that much life.)
Artifacts and creatures your opponents control enter tapped.

Winter Orb

As long as Winter Orb is untapped, players can't untap more than one land during their untap steps.

Armageddon

Sol Ring

Welding Jar

Sacrifice Welding Jar: Regenerate target artifact.