Planetarium of Wan Shi Tong is a great card in any deck that aims to ramp up to high mana cost cards, as it can cheat something out for you each and every turn
Croaking Counterpart is another flavor pick that increases your frog count while copying a useful creature from an opponents side of the board
If an effect causes The Warring Triad to lose all abilities, its ability that causes it to stop being a creature still applies if appropriate
Chandra, Flameshaper Chandra, Flameshaper may be costly, but has a rockin' +2 ability that adds a good chunk of mana to go along with card selection
Hiram Flaversham, Toymaker is banned in Core Constructed formats, but can still be played in sealed, draft, and casual play
This one has the added text for 'must be blocked.' Grazing Whiptail: Meant for Limited