Once transformed into Crystallized Serah, the +2/+2 to all your legendary creatures is something that makes it incredibly hard for your opponent to catch up to you
Ragavan is basically one of the best 1-mana creatures ever printed
Minnie Mouse is less popular than Mickey, but she's definitely worth quite a pretty penny as one of the first iconic cards in the entire game
In the vast majority of games, the life that your opponent gains from you nuking their creatures with Swords to Plowshares will not amount to much, unless theyre playing a black deck with life-to-resource cards (watch out for Toxic Deluge or worse, Yawgmoths Bargain !) Swords to Plowshares isnt a particularly expensive card, and its very easy to find
In centimeters, thats 6.3cm x 8.8cm
But you can regularly get away with hands that have no plays until turn three or four and not end up too far behind on life