Karrthus, Tyrant of Jund (Oversized) [Commander's Arsenal Oversized] Commander Anthology Volume II Tokens double the number of +1/+1

double the number of +1/+1 counters on Primordial Hydra

if you must

When Phyrexian Dreadnought enters the battlefield

and accessible to all

Set: Arena League 2002 Type: Instant Rarity: Rare Cost: {1}{U} Counter target spell unless its controller pays {3}

Karrthus, Tyrant of Jund (Oversized) [Commander's Arsenal Oversized] Commander Anthology Volume II Tokens double the number of +1/+1Set: Commander's Arsenal Oversized Type: Legendary Creature Dragon Rarity: Mythic Cost: {4}{B}{R}{G} Flying, haste When Karrthus, Tyrant of Jund enters the battlefield, gain control of all Dragons, then untap all Dragons. Other Dragon creatures you control have haste.