The most common way to take out a creature this large was to use black removal spells, and Sol'kanar was both black and had swampwalk to punish the owner of the spell for looking at him funny
There was an error retrieving a chart for Sivitri Scarzam Stangg The original Stangg was such a cool card because it basically brought a copy of itself along to the battlefield when you summoned him
He is one of the best creatures ever made, and he's common to boot
This has seen considerable play in modern Dragunity/Dragon Link decks, as it can find niche combo pieces reliably without using a plethora of resources
Nylea's Colossus 6G Enchantment Creature Giant 6/6 Constellation Whenever Nylea's Colossus or another enchantment enters the battlefield under your control, double target creature's power and toughness until end of turn
While there are other trio Tag Team cards, like Moltres & Zapdos & Articuno, this is easily the most valuable trio