mtg ante cards Demonic Attorney Contract from Below is one

Nabbing a Platinum Angel and seeing foes scramble to deal with you being unkillable. 9

You'll need to have a consistent way to get more lands into your hand with other ramp effects to keep making use of her ability, but even without that, Azusa can catapult you ahead of your opponents in a single turn

Ultimately this is probably not the thing to be doing in a format where Vivi Ornitier and Kaito, Bane of Nightmares are two of the best strategies, but it does make me want to brew

Ross Merriam picked Selesnya to be the best guild in Guilds of Ravnica before anyone else due to the power of Flower, and after playing with the card over the last week, Id have to agree with him