Dregscape Sliver [Modern Horizons] Alien Scientist Flashback {4}{R}{R} (You may cast

Flashback {4}{R}{R} (You may cast this card from your graveyard for its flashback cost

−7: Flip five coins

Flashback {2}{R}{W} (You may cast this card from your graveyard for its flashback cost

Enchanted creature gets +1/+1 and has flying and lifelink

Tie yourselves down

Dregscape Sliver [Modern Horizons] Alien Scientist Flashback {4}{R}{R} (You may castSet: Modern Horizons Type: Creature Sliver Rarity: Uncommon Cost: {1}{B} Each Sliver creature card in your graveyard has unearth {2}. Unearth {2} ({2}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)