Lancea is great because it make passes turn any flowandereese deck and handicaps phantom knight (in the condition that they haven't they adventurer negate)
Tamiyo, Inquisitive Student might be the hardest to transform of the bunch, which makes sense: she's essentially a one mana planeswalker, so your opponents had better hope there are some hoops to jump through
Other people choose to run a deck purely focused on making Donphan as annoying as possible to deal with
Then any abilities that triggered due to either of them entering the battlefield are put on the stack
Decks with Spellbook of Secrets Most popular Decks based on the Current Meta , across all Ranks
If you do, when this creature enters, create a 1/1 token copy of it.) At the beginning of combat on your turn, target Mouse you control gains your choice of double strike or trample until end of turn