Warkite Marauder

• WWizards of the Coast2018-01-19
  Official Ruling
  Warkite Marauder's ability overwrites all previous effects that set the creature's base power and toughness to specific values. Any power- or toughness-setting effects that start to apply after the ability resolves will overwrite this effect.
• WWizards of the Coast2018-01-19
  Official Ruling
  If the affected creature gains an ability after Warkite Marauder's ability resolves, it will keep that ability. If the affected creature has an ability that grants abilities to other objects, Warkite Marauder's effect will stop it from doing so.
• WWizards of the Coast2018-01-19
  Official Ruling
  Effects that modify a creature's power and/or toughness, such as the effect of Titanic Growth, will apply to the creature no matter when they started to take effect. The same is true for any counters that change its power and/or toughness and effects that switch its power and toughness.

Rulings via Scryfall