mtg sword of the ageslegends Pioneer Staples put a +1/+1 counter on

put a +1/+1 counter on Sengir Vampire

Xenagos isn't a creature

Crackling and blazing

Set: Invasion Type: Enchantment Rarity: Rare Cost: {2}{W} As long as you control a permanent of each color

its owner loses half their life

mtg sword of the ageslegends Pioneer Staples put a +1/+1 counter onSet: Legends Type: Artifact Rarity: Rare Cost: {6} Sword of the Ages enters the battlefield tapped. {T}, Sacrifice Sword of the Ages and any number of creatures you control: Sword of the Ages deals X damage to any target, where X is the total power of the creatures sacrificed this way, then exile Sword of the Ages and those creature cards.