Both vintage and modern Pokemon cards follow this system, so the age of your cards wont play a role here

Advanced Search Sets Random Syntax Aegar, the Freezing Flame All Will Be One Ancient Silverback Annihilate Arboria Arm with ther Artillerize Awaken the Woods Battlefly Swarm Bladed Sentinel Bog Raiders Charismatic Vanguard Coldsteel Heart Collective Nightmare Complex Automaton Dark Ritual Darksteel Monolith Darkwater Catacombs Deathbloom Gardener Deathcap Glade Destructive Flow Dismember Disrupt Distorting Wake Drag to the Bottom Dredge Ebony Treefolk Engineered Plague Ertai, the Corrupted Expedition Lookout Flowstone Infusion Geothermal Bog Gix Glistener Elf Gnathosaur Green Sun's Zenith Gust-Skimmer Heroes' Reunion Hinterland Harbor Hulking Raptor Inga Rune-Eyes Jungle Hollow Legacy Weapon Leyline Surge Lightning Dart Lightning Helix Llanowar Tribe Lurking Evil Machine God's Effigy Mana Cannons Master Splicer Metathran Zombie Mirran Mettle Mirror-Shield Hoplite Mishra Mishra's Bauble Moment of Valor Morbid Plunder Perilous Vault Phyrexian Altar Phyrexian Atlas Phyrexian Debaser Phyrexian Defiler Phyrexian Denouncer Phyrexian Plaguelord Phyrexian Soulgorger Plague Engineer Plague Spores Planar Portal Planar Void Pollen-Shield Hare Pollen-Shield Hare

Blue decks that could certainly play prolonged, traditional control games, but could also just auto-win on Turn 5 by playing a powerful, hard-to-interact with creature that can block until it abruptly turns the corner with protection up
Emerald ink cards are much more flexible, which in this case provides the necessary means to gather Lore during a game
Tetsuko Umezawa, Fugitive Tetsuko Umezara, Fugitive is a Human Rogue that makes Creatures you control with power or toughness one or less unblockable