Higure, the Still Wind [Planechase 2012] Forest Island double the number of +1/+1

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

the Preserver enters the battlefield

Set: Unlimited Edition Type: Artifact Rarity: Uncommon Cost: {4} {1}

When Necromancy enters the battlefield

Set: Kaladesh Inventions Type: Artifact Rarity: Mythic Cost: {1} As Black Vise enters the battlefield

Higure, the Still Wind [Planechase 2012] Forest Island double the number of +1/+1Set: Planechase 2012 Type: Legendary Creature Human Ninja Rarity: Rare Cost: {3}{U}{U} Ninjutsu {2}{U}{U} ({2}{U}{U}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.) Whenever Higure, the Still Wind deals combat damage to a player, you may search your library for a Ninja card, reveal it, put it into your hand, then shuffle. {2}: Target Ninja creature can't be blocked this turn.