Kelsien, the Plague [Commander 2020]Set: Commander 2020 Type: Legendary Creature Human Assassin Rarity: Mythic Cost: {R}{W}{B} Vigilance, haste Kelsien, the Plague gets +1 +1 for each experience counter you have. {T}: Kelsien deals 1 damage to target creature you don't control. When that creature dies this turn, you get an experience counter. "Aim for an eye. Better they never see you."

then you lose life equal to the number of cards in your hand

Set: Sword & Shield: Darkness Ablaze Type: Fighting Rarity: Holo Rare Retreat cost: Colorless

Exchange control of those permanents

Although it looks like a game

where X is the number of your opponents with four or more cards in hand

Set: Black & White: Noble Victories Type: Water Rarity: Uncommon Retreat cost: Colorless

Set: Base Set 1st Edition Type: Trainer Rarity: Uncommon

" When it leaves the battlefield

if you control no other creatures

"When are trees like grass

Set: Time Spiral Type: Creature — Human Wizard Rarity: Rare Cost: {2}{W}{W} Magus of the Disk enters the battlefield tapped

Set: Mystery Booster Type: Legendary Land Rarity: Rare {T}: Add {B}