Lochmere Serpent [Throne of Eldraine Prerelease Promos]Set: Throne of Eldraine Prerelease Promos Type: Creature Serpent Rarity: Rare Cost: {4}{U}{B} Flash {U}, Sacrifice an Island: Lochmere Serpent can't be blocked this turn. {B}, Sacrifice a Swamp: You gain 1 life and draw a card. {U}{B}: Exile five target cards from an opponent's graveyard. Return Lochmere Serpent from your graveyard to your hand. Activate only as a sorcery.

and your behind

Whenever Daring Saboteur deals combat damage to a player

If an opponent catches you right away

Set: World Championship Decks 1999 Type: Creature — Phyrexian Horror Rarity: Rare Cost: {2}{B} Trample

and others piled in behind to deepen the new tunnel

has trample

choose a player

Set: Sword & Shield: Battle Styles Type: Water Rarity: Secret Rare Retreat cost: Colorless

Search your library for a card with the same name as that card

Set: Commander Anthology Volume II Type: Creature — Human Shaman Rarity: Uncommon Cost: {1}{G}{G} When Eternal Witness enters the battlefield

where X is the number of page counters on Barrin's Codex

Set: Commander 2016 Type: Sorcery Rarity: Rare Cost: {U} Join forces — Starting with you