Phyrexian Devourer [Alliances] Paupercommander and that player can't activate

and that player can't activate abilities that aren't mana abilities

lavamancer

Set: Legends Type: Legendary Creature — Elder Dragon Rare Cost: {2}{G}{G}{W}{W}{U}{U} Flying At the beginning of your upkeep

Set: Zendikar Expeditions Type: Land — Mountain Forest Mythic Cost: ({T}: Add {R} or {G}

return it to its owner's hand

Phyrexian Devourer [Alliances] Paupercommander and that player can't activateSet: Alliances Type: Artifact Creature Phyrexian Construct Rarity: Rare Cost: {6} When Phyrexian Devourer's power is 7 or greater, sacrifice it. Exile the top card of your library: Put X +1 +1 counters on Phyrexian Devourer, where X is the exiled card's mana value.