This role is well reflected in the new Lorcana card Kida, Protector of Atlantis, which is a fantastic card to play if you want to protect your amber ink armies of weaker characters
Its a six mana Blue and Black 5/6 that reads, At the beginning of your upkeep, choose target opponent
Unfortunately it can only get a basic Plains to hand
Despite having more restrictions than its successor, Soldevi Adnate is very good at getting you extra value out of expendable creatures

Ainok Tracker Akroma, Angel of Fury Aphetto Alchemist Aquamorph Entity Ascending Aven Ashcloud Phoenix Aven Liberator Backslide Battering Craghorn Birchlore Rangers Blistering Firecat Bloodstoke Howler Branchsnap Lorian Brine Elemental Broodhatch Nantuko Canyon Lurkers Charging Slateback Chromeshell Crab Coral Trickster Crude Rampart Daru Healer Daru Lancer Daru Mender Daru Sanctifier Dawning Purist Defender of the Order Dermoplasm Disruptive Pitmage Dragon's Eye Savants Dulcet Sirens Dwarven Blastminer Echo Tracer Efreet Weaponmaster Exalted Angel Exiled Doomsayer Fathom Seer Fledgling Mawcor Foothill Guide Fortune Thief Frontline Strategist Gathan Raiders Glacial Stalker Goblin Taskmaster Gravel Slinger Hooded Hydra Horde Ambusher Hystrodon Icefeather Aven Imperial Hellkite Ironfist Crusher Jeering Instigator Karona's Zealot Kheru Spellsnatcher Kin-Tree Warden Krosan Cloudscraper Krosan Colossus Liege of the Axe Lumithread Field Maelstrom Djinn Master of Pearls Master of the Veil Mischievous Quanar Mistfire Weaver Mistform Seaswift Mistform Shrieker Monastery Flock Mystic of the Hidden Way Nameless One Nantuko Vigilante Patron of the Wild Pine Walker Primal Whisperer

Rather than directly countering a spell, these tax effects force opponents to spend extra mana, slowing down their curve and disrupting their strategy