The Abyss waiting in my hand that game wasn't even needed
When you exile a card this way, target creature you control gets +X/+0 until end of turn, where X is that card's mana value
$2.99 Summon: Leviathan Final Fantasy $0.49 Gilgamesh, Master-at-Arms Final Fantasy $1.99 Venat, Heart of Hydaelyn Final Fantasy $0.49 Triple Triad Final Fantasy $0.49 Summon: Brynhildr Final Fantasy $0.49 Seifer Almasy Final Fantasy $0.49 Vaan, Street Thief Final Fantasy $0.49 Raubahn, Bull of Ala Mhigo Final Fantasy $0.49 Firion, Wild Rose Warrior Final Fantasy $1.99 Summon: Titan Final Fantasy $0.79 The Wandering Minstrel Final Fantasy $2.49 Summon: Primal Odin Final Fantasy 0 results found
This leads to +1/+1 counters and damage prevention being a common theme among hydras, and some of them even deal damage with their heads
Both decks will certainly be playing similar cards, like Netherese Puzzle-Ward, Vexing Puzzlebox, and Barbarian Class