Yes, even if your deck is all about creatures, you still need a creature board wipe
Heres what I predict for each colleges unique mechanic: Silverquill (WB) Eloquence Whenever this creature becomes the target of an instant or sorcery spell, trigger an effect
Costing one mana makes it searchable with Urza's Saga in eternal formats and unlike Soul-Guide Lantern, you can exile the graveyard and draw a card at the same time, making it the most effective variant and very similar to Nihil Spellbomb
Now that's some great value in going wide with creatures
Venusaur EX Fire Red and Leaf Green ($300) The Fire Red & Leaf Green expansion, which capitalised on the hype from the GBA remakes of the very first Pokemon games, introduced EX cards, bringing us the first Venusaur EX card
Krosan Grip is a Commander staple, thanks to its split second ability