Psionic Sliver (Extended Art) [Secret Lair Drop Promos] SPA Gigante del océano I was able to replace

I was able to replace it with something better

Enchanted creature gets +1/+0 and has flying

Set: Rise of the Eldrazi Type: Creature — Merfolk Wizard Uncommon Cost: {U} Level up {1}{U} ({1}{U}: Put a level counter on this

Its controller mills four cards

Set: Scars of Mirrodin Type: Creature — Wurm Rare Cost: {5}{G}{G} Whenever Engulfing Slagwurm blocks or becomes blocked by a creature

Psionic Sliver (Extended Art) [Secret Lair Drop Promos] SPA Gigante del océano I was able to replaceSet: Secret Lair Drop Promos Type: Creature Sliver Rarity: Rare Cost: {4}{U} All Sliver creatures have {T}: This creature deals 2 damage to any target and 3 damage to itself. They evolved the ability to concentrate their neural activity into a single pulse, causing a disruptive but usually suicidal blast of psionic energy.