So despite Ragavan, Nimble Pilferer being a busted Magic card in the format and maybe the best red card existing, its still manageable for the majority of decks
If there are additional costs to cast a spell, or if the cost to cast a spell is increased by an effect (such as the one created by Thalia, Guardian of Thraben's ability), apply those increases before applying cost reductions
Ramos is an incredibly powerful and explosive source of mana ramp, but to get the most out of Ramos you need to be playing multicolored spells
Like the combo that I'll give you below for you to start your Aeve deck: Temur Sabertooth will return your Eternal Witness to your hand, which will continually recycle your Early Harvest, generating as much mana as you want, which you can repeat this combo, will trigger abilities of permanents as many times as you want and will increase your storm count to very high numbers, creating thousands of Aeve, Progenitor Ooze tokens and making them all gigantic
Easy to find with tutors and quick to power up, this is an MTG planeswalker with major fun factor
With that out of the way, lets see the best unkillable creatures MTG has to offer, across multiple formats like EDH, Standard, Modern, and more