Sepulchral Primordial

Destroy all creatures you don't control and all planeswalkers you don't control.

Other Rogues you control get +1/+1. Whenever one or more Rogues you control deal combat damage to a player, that player mills a card for each 1 damage dealt to them. If the player mills at least one creature card this way, you draw a card. (To mill a card, a player puts the top card of their library into their graveyard.)

At the beginning of combat on your turn, up to one target land you control becomes an X/X Elemental creature with trample and haste until end of turn, where X is Obuun's power. It's still a land. Landfall — Whenever a land you control enters, put a +1/+1 counter on target creature.

Vigilance Landfall — Whenever a land you control enters, exile target permanent card with mana value 3 or less from your graveyard. When this creature dies, put each permanent card exiled with it onto the battlefield under the control of that card's owner.

Prowl 3U (You may cast this spell for its prowl cost if you dealt combat damage to a player this turn with a Sphinx or Rogue.) Flying When this creature enters, for each opponent, return up to one target nonland permanent that player controls to its owner's hand.

Equipped creature gets +2/+0. Whenever equipped creature deals combat damage to a player, you may cast a creature spell from that player's graveyard this turn, and you may spend mana as though it were mana of any color to cast that spell. Equip 3

First strike Landfall — Whenever a land you control enters, goad each creature target player controls. (Until your next turn, those creatures attack each combat if able and attack a player other than you if able.)

Other Rogues you control get +1/+1. Whenever one or more Rogues you control deal combat damage to a player, that player mills a card for each 1 damage dealt to them. If the player mills at least one creature card this way, you draw a card. (To mill a card, a player puts the top card of their library into their graveyard.)