Beatrix, Loyal General** From the Final Fantasy MTG Starter Deck Beatrix lets you skip a whole lot of equip costs but at 6 mana youre spending a lot for a 4/4 whos more restricted on that than some other option
Youre not just trading one-for-one, but also digging deeper into your deck
Lignify + Kenriths Transformation Transforming a creature into a different creature is rather janky, but Id rather deal with an elk than a Niv-Mizzet, Parun any day of the week
Admittedly, some of these cards arent too powerful, but there are a few that have captured players attention
Im talking, of course, about Dragonlord Ojutai and The Scarab God
If you can turn them into lands, such as with Ashaya, Soul of the Wild, or maneuver their abilities onto land creatures, you can untap either druid and a land infinitely