mtg intro commander decks TCG: Magic The Gathering art legendary commander card and 99 nonfoil cards Starter Commander Decks (WeeklyMTG) :

These keep your deck functional and interactive

It plays into Jeskai's strength with tokens, while having a lot of mana rocks to make up for Jeskai's lackluster ramp ability

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Since Krosa grants a global boost to all creatures, it generally benefits decks that go wide with lots of creatures and tokens and creatures with an evasion theme, like flying

However, if you control six or more lands, you instead create a copy of Scute Swarm

That said, context changes the answer to this question