Bladecoil Serpent (Extended Art) [The Brothers' War] Phyrexian Avatar target creature an opponent controls

target creature an opponent controls gets -0/-X until end of turn

That is enough

Set: Phyrexia: All Will Be One Commander Type: Sorcery Rarity: Rare Cost: {2}{B} Converge — You draw X cards and you lose X life

put up to one target creature card from that player's graveyard onto the battlefield under your control

you lose 1 life and create a 1/1 colorless Phyrexian Mite artifact creature token with toxic 1 and "This creature can't block

Bladecoil Serpent (Extended Art) [The Brothers' War] Phyrexian Avatar target creature an opponent controlsSet: The Brothers' War Type: Artifact Creature Serpent Rarity: Mythic Cost: {X}{6} When Bladecoil Serpent enters the battlefield, for each {U}{U} spent to cast it, draw a card. When Bladecoil Serpent enters the battlefield, for each {B}{B} spent to cast it, each opponent discards a card. When Bladecoil Serpent enters the battlefield, for each {R}{R} spent to cast it, it gets +1 +0 and gains trample and haste until end of turn.