Austere Command (Invocation) [Amonkhet Invocations] Phyrexian Spider Artifacts you control have "{T}:

Artifacts you control have "{T}: Add one mana of any color

"There is only one way of life in Jund: feed on the weak until you are cut down by something stronger

"Stop bleeding

Set: Tenth Edition Type: Creature — Human Knight Rarity: Common Cost: {1}{W} First strike

Whenever an opponent who controls an artifact named Wedding Ring gains life during their turn

Austere Command (Invocation) [Amonkhet Invocations] Phyrexian Spider Artifacts you control have "{T}:Set: Amonkhet Invocations Type: Sorcery Rarity: Mythic Cost: {4}{W}{W} Choose two Destroy all artifacts. Destroy all enchantments. Destroy all creatures with mana value 3 or less. Destroy all creatures with mana value 4 or greater.