Let me introduce a few people to you at here:
1 ) Summon Xennis,
: Creature gets +X/+X for X lessons unattended on the day.
2 ) Summon Prekavie, : When Creature comes to play, sacrifice Bean if player controls one.
3~4 ) Summon BB, : banding, trample, BB count as a\two patrol cars.(Each patrol car can not be blocked by only one creature.)
5 ) Summon Ivan, : no detail, bury Creature, if you like.