cool card

Oath Written in Blood
Group: Spell Card
Type: Spell
You can only activate this card during the turn you Normal Summoned a monster. Special Summon 1 Level-4 or lower monster with the same Attribute as the Normal Summoned monster. It cannot declare an attack this turn. You cannot Synchro, or Xyz Summon this turn. When the Normal Summoned monster is removed from the Field, banish the card Special Summoned by this effect.

contact or normal fusions

example:

normal summon soul swap swordfish, get your extra ns (like maybe dark enchinoderm), activate oath, ss water fish, go for red lionfish

Not only that, it makes for a good tribute summon. Flexible and supports all the right things while not supporting the wrong ones i likey.

:S posted this in card suggestions by mistake

it's actually already an lccg card.

moved

Oh, you posted it in the right place, I moved it cause i thought it was a new card