Thromok the Insatiable [Planechase 2012] SM156 you cannot Summon other monsters

you cannot Summon other monsters this turn

'What are you going to do about it

also banish the remaining cards face-down

or leaves the field because of an opponent's card effect while its owner controls it: You can Special Summon 1 "Flower Cardian" Synchro Monster from your Extra Deck

Thromok the Insatiable [Planechase 2012] SM156 you cannot Summon other monstersSet: Planechase 2012 Type: Legendary Creature Hellion Rarity: Mythic Cost: {3}{R}{G} Devour X, where X is the number of creatures devoured this way (As this enters the battlefield, you may sacrifice any number of creatures. This creature enters the battlefield with X +1 +1 counters on it for each of those creatures.)