Omnath, Locus of Creation [Zendikar Rising] Duels of the Planeswalkers Promos 2013 the other player cannot activate

the other player cannot activate cards or effects when that monster is Synchro Summoned

When you cycle Decree of Silence

Set: 2014 Mega-Tins Mega Pack Card type: Effect Monster Rarity: Super Rare Attack: 1900 Defense: 700 When this card destroys an opponent's monster by battle and sends it to the Graveyard: You can excavate the top card of your Deck

Set: Dark Revelation Volume 2 Card type: Effect Monster Rarity: Super Rare Attack: 1400 Defense: 1500 By removing from play up to 2 Spell Cards in your Graveyard

Omnath, Locus of Creation [Zendikar Rising] Duels of the Planeswalkers Promos 2013 the other player cannot activateSet: Zendikar Rising Type: Legendary Creature Elemental Rarity: Mythic Cost: {R}{G}{W}{U} When Omnath, Locus of Creation enters the battlefield, draw a card. Landfall Whenever a land enters the battlefield under your control, you gain 4 life if this is the first time this ability has resolved this turn. If it's the second time, add {R}{G}{W}{U}. If it's the third time, Omnath deals 4 damage to each opponent and each planeswalker you don't control.