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Alternatively, Abductor can be Normal Summoned for searching Souls, which can Summon itself by sending Reflection/Jackal King (usually) from the Deck to the GY, to eventually Draw up to 2 Cards by recycling Spells

Necrobinder introduces ally mechanics (Osty) and low-HP risk/reward

Jellicent ex (Special Illustration Rare) The Water-Type Pokmon Card Can Be Disruptive The Special Illustration Rare version of Jellicent ex in the White Flare set is also quite expensive

I went to bed that night thinking of strategies of how I would move more than 90 freaking Spawnsire of Ulamogs

That's not counting beyond boosters, value boosters (only sold in major retailers) or Secret Lair drops (a massive headache, as Jeff noted), ancillary products like playmats and tokens, tickets to MagicCon, digital cosmetics like companions, or Avatars in Magic Arena