The Hunger Tide Rises {2}{G}
Enchantment — Saga
(As this Saga enters and after your draw step, add a lore counter. Sacrifice after IV.)
I, II, III — Create a 1/1 black and green Insect creature token.
IV — Sacrifice any number of creatures. Search your library and/or graveyard for a creature card with mana value less than or equal to the number of creatures sacrificed this way and put it onto the battlefield. If you search your library this way, shuffle.
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Cards that do something similar expected a card that isn't here?
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Last-Ditch Effort 95%
$2.04#11912
"Sacrifice any number of creatures. this card deals that much damage to any target."
Corpse Cobble 86%
$0.18#19023
"As an additional cost to cast this spell, sacrifice any number of creatures."
+1 more matching line
Vicious Betrayal 86%
$0.18#28519
"As an additional cost to cast this spell, sacrifice any number of creatures."
Torgaar, Famine Incarnate 83%
$0.40#11546
"As an additional cost to cast this spell, you may sacrifice any number of creatures. This spell costs {2} less to cast for each creature sacrificed this way."