Spell heart chimera

[Rass]

 {Spellheart Chimera} with  {Turn // Burn} in graveyard. How much bonus does the chimera get

[Remillo]

It's only one physical card, so it only counts once.

708.4. Although split cards have two castable halves, each split card is only one card. For example, a player who has drawn or discarded a split card has drawn or discarded one card, not two.