Jennika's Technique [Teenage Mutant Ninja Turtles] Jellyfish Hydra Beast Remove a number of loyalty

Remove a number of loyalty counters equal to that card's converted mana cost from Jace

The second immobilizes it

Set: Mercadian Masques Type: Artifact Rarity: Rare Cost: {5} At the beginning of your end step

Set: Commander 2018 Type: Creature — Goblin Rogue Rarity: Rare Cost: {2}{R} Whenever an opponent taps an artifact for mana

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Jennika's Technique [Teenage Mutant Ninja Turtles] Jellyfish Hydra Beast Remove a number of loyaltySet: Teenage Mutant Ninja Turtles Type: Instant Rarity: Uncommon Cost: {2}{R} Sneak {R} (You may cast this spell for {R} if you also return an unblocked attacker you control to hand during the declare blockers step.) Jennika's Technique deals 2 damage to each creature. Being a mutant isn't easy. Lucky for me, I've been preparing for this my entire life!